Crashes at random

[FelicitusNeko]

Describe the bug Fluent Search will quietly crash at any given point.

To Reproduce Steps to reproduce the behavior:

1. Run Fluent Search
2. Wait (could take a variable amount of time)

Expected behavior Fluent Search is ready for use.

Screenshots Fluent Search has silently crashed for some unknown reason. No log file can be found.

Desktop (please complete the following information):

• Windows 11 21H2 22000.318
• Fluent Search 0.9.89.9990

[adirh3]

@FelicitusNeko Can you please check the event viewer logs? Run -> eventvwr -> Windows Logs -> Application -> Scroll to the time when FS crashed, you should see 2 errors for either ".NET Runtime" or "Fluent Search", can you please the error messages here?

[FelicitusNeko]

I've now looked for those, and only found one event that happened a month ago. The program has crashed many times much more recently than that. Here's the one event that is there:

Category: Blast.IndexerService.Worker EventId: 0

Trying to find path for: C:\Program Files\WindowsApps\21814BlastApps.BlastSearch_0.9.89.0_x64__pdn8zwjh47aq4

It's listed as a warning rather than an error. It is the only event listed under FluentSearch, and also the only one listed under .NET Runtime associated to FluentSearch (any other events are related to other unrelated programs).

[adirh3]

I've now looked for those, and only found one event that happened a month ago. The program has crashed many times much more recently than that. Here's the one event that is there:

Category: Blast.IndexerService.Worker EventId: 0 Trying to find path for: C:\Program Files\WindowsApps\21814BlastApps.BlastSearch_0.9.89.0_x64__pdn8zwjh47aq4

It's listed as a warning rather than an error. It is the only event listed under FluentSearch, and also the only one listed under .NET Runtime associated to FluentSearch (any other events are related to other unrelated programs).

Can't see anything else? It might now show have "Fluent Search" in the title, but if the app crashed a log will be generated (this is Windows mechanism). Also, do you have "Send crash diagnostics" enabled in Settings -> System? If so, can you please let me know the exact time FS crashed so I will check if I see any errors.

One last suggestion - I see you use the Microsoft Store version, in general I recommend using the EXE installer instead, as there are compatability issues with apps like Fluent Search when used inside the Microsoft Store (which enforce the Appx installers).

[FelicitusNeko]

I do have "Send crash diagnostics" enabled. It has evidently crashed sometime in the last hour, but I couldn't tell you exactly when. I only noticed it a minute ago.

As for using the EXE version, I probably would have gone right to that one if it was available on Chocolatey. That is how I tend to keep my software up to date.

[adirh3]

I do have "Send crash diagnostics" enabled. It has evidently crashed sometime in the last hour, but I couldn't tell you exactly when. I only noticed it a minute ago.

As for using the EXE version, I probably would have gone right to that one if it was available on Chocolatey. That is how I tend to keep my software up to date.

Thanks, the last was 12 hours ago, so I guess it wouldn't be this. So, it's either crashing but fails to send the crash log, or it's somehow exits normally or being closed by other program.

Do you mind trying the EXE/Portable versions? I suspect this is due the Appx installation. (link in website - https://fluentsearch.net) FYI - EXE updates itself and can be installed through the Windows Package Manager. I will also upload it to Chocolatey soon.

[FelicitusNeko]

I have changed to the EXE version. I'm glad there is an option to export and import all settings, so I don't have to reconfigure everything.

[adirh3]

I have changed to the EXE version. I'm glad there is an option to export and import all settings, so I don't have to reconfigure everything.

Thanks! Please let me know if the issue persists or is fixed.

[FelicitusNeko]

The crash happened again. This time, an error was captured via .NET Runtime:

Application: FluentSearch.exe CoreCLR Version: 6.0.21.51515 .NET Version: 6.0.0-rtm.21515.15 Description: The process was terminated due to an unhandled exception. Exception Info: System.NullReferenceException: Object reference not set to an instance of an object. at Blast.Logics.Settings.SyncSettings.SyncSettingsNow(Window window) in D:\a\1\s\Blast.Logics\Settings\SyncSettings.cs:line 189 at Blast.UI.Core.SettingComponents.ActionSettingControlBuilder.<>c__DisplayClass0_0.<<CreateNewControl>g__OnButtonClicked|3>d.MoveNext() in D:\a\1\s\Blast.UI.Core\SettingComponents\ActionSettingControlBuilder.cs:line 65 --- End of stack trace from previous location --- at Blast.UI.Core.SettingComponents.ActionSettingControlBuilder.<>c__DisplayClass0_0.<<CreateNewControl>b__2>d.MoveNext() in D:\a\1\s\Blast.UI.Core\SettingComponents\ActionSettingControlBuilder.cs:line 58 --- End of stack trace from previous location --- at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__127_0(Object state) at Avalonia.Threading.JobRunner.RunJobs(Nullable`1 priority) in C:\Users\adirh\RiderProjects\Avalonia\src\Avalonia.Base\Threading\JobRunner.cs:line 37 at Avalonia.Win32.Win32Platform.WndProc(IntPtr hWnd, UInt32 msg, IntPtr wParam, IntPtr lParam) in C:\Users\adirh\RiderProjects\Avalonia\src\Windows\Avalonia.Win32\Win32Platform.cs:line 278 at Avalonia.Win32.Interop.UnmanagedMethods.DispatchMessage(MSG& lpmsg) at Avalonia.Win32.Win32Platform.RunLoop(CancellationToken cancellationToken) in C:\Users\adirh\RiderProjects\Avalonia\src\Windows\Avalonia.Win32\Win32Platform.cs:line 205 at Avalonia.Threading.Dispatcher.MainLoop(CancellationToken cancellationToken) in C:\Users\adirh\RiderProjects\Avalonia\src\Avalonia.Base\Threading\Dispatcher.cs:line 61 at Avalonia.Controls.ApplicationLifetimes.ClassicDesktopStyleApplicationLifetime.Start(String[] args) in C:\Users\adirh\RiderProjects\Avalonia\src\Avalonia.Controls\ApplicationLifetimes\ClassicDesktopStyleApplicationLifetime.cs:line 126 at Blast.Program.Main(String[] args) in D:\a\1\s\Blast\Program.cs:line 222

This happened at around 19:27 UTC.

[adirh3]

The crash happened again. This time, an error was captured via .NET Runtime:

Application: FluentSearch.exe CoreCLR Version: 6.0.21.51515 .NET Version: 6.0.0-rtm.21515.15 Description: The process was terminated due to an unhandled exception. Exception Info: System.NullReferenceException: Object reference not set to an instance of an object. at Blast.Logics.Settings.SyncSettings.SyncSettingsNow(Window window) in D:\a\1\s\Blast.Logics\Settings\SyncSettings.cs:line 189 at Blast.UI.Core.SettingComponents.ActionSettingControlBuilder.<>c__DisplayClass0_0.<g__OnButtonClicked|3>d.MoveNext() in D:\a\1\s\Blast.UI.Core\SettingComponents\ActionSettingControlBuilder.cs:line 65 --- End of stack trace from previous location --- at Blast.UI.Core.SettingComponents.ActionSettingControlBuilder.<>c__DisplayClass0_0.<b__2>d.MoveNext() in D:\a\1\s\Blast.UI.Core\SettingComponents\ActionSettingControlBuilder.cs:line 58 --- End of stack trace from previous location --- at System.Threading.Tasks.Task.<>c.b__127_0(Object state) at Avalonia.Threading.JobRunner.RunJobs(Nullable`1 priority) in C:\Users\adirh\RiderProjects\Avalonia\src\Avalonia.Base\Threading\JobRunner.cs:line 37 at Avalonia.Win32.Win32Platform.WndProc(IntPtr hWnd, UInt32 msg, IntPtr wParam, IntPtr lParam) in C:\Users\adirh\RiderProjects\Avalonia\src\Windows\Avalonia.Win32\Win32Platform.cs:line 278 at Avalonia.Win32.Interop.UnmanagedMethods.DispatchMessage(MSG& lpmsg) at Avalonia.Win32.Win32Platform.RunLoop(CancellationToken cancellationToken) in C:\Users\adirh\RiderProjects\Avalonia\src\Windows\Avalonia.Win32\Win32Platform.cs:line 205 at Avalonia.Threading.Dispatcher.MainLoop(CancellationToken cancellationToken) in C:\Users\adirh\RiderProjects\Avalonia\src\Avalonia.Base\Threading\Dispatcher.cs:line 61 at Avalonia.Controls.ApplicationLifetimes.ClassicDesktopStyleApplicationLifetime.Start(String[] args) in C:\Users\adirh\RiderProjects\Avalonia\src\Avalonia.Controls\ApplicationLifetimes\ClassicDesktopStyleApplicationLifetime.cs:line 126 at Blast.Program.Main(String[] args) in D:\a\1\s\Blast\Program.cs:line 222

This happened at around 19:27 UTC.

Thank you! This issue can happen when "Sync settings with OneDrive" is enabled, it is fixed in the latest nightly build. I suggest for now either disabling OneDrive sync or switching to the nightly build in Settings -> System -> Release feed. Note - the nightly build is updated daily and is more buggy.

[FelicitusNeko]

All right, I've signed out of OneDrive. I'll leave this open for now, in case there's another crash. If it remains up all day, then we might be good.

[FelicitusNeko]

It crashed again. This one did not show up under FluentSearch or .NET Runtime, but I did happen to notice an Application Error entry pertaining to Fluent Search:

Faulting application name: FluentSearch.exe, version: 0.9.89.9990, time stamp: 0x616a27d5 Faulting module name: ucrtbase.dll, version: 10.0.22000.1, time stamp: 0x00e78ce9 Exception code: 0xc00000fd Fault offset: 0x0000000000050163 Faulting process ID: 0x5ccc Faulting application start time: 0x01d7e851ab2165d5 Faulting application path: C:\Program Files\Fluent Search\FluentSearch.exe Faulting module path: C:\Windows\System32\ucrtbase.dll Report ID: ed504d7d-aad2-4ce4-b22d-d6fa504263e6 Faulting package full name: Faulting package-relative application ID:

This was around 14:46 UTC.

[adirh3]

It crashed again. This one did not show up under FluentSearch or .NET Runtime, but I did happen to notice an Application Error entry pertaining to Fluent Search:

Faulting application name: FluentSearch.exe, version: 0.9.89.9990, time stamp: 0x616a27d5 Faulting module name: ucrtbase.dll, version: 10.0.22000.1, time stamp: 0x00e78ce9 Exception code: 0xc00000fd Fault offset: 0x0000000000050163 Faulting process ID: 0x5ccc Faulting application start time: 0x01d7e851ab2165d5 Faulting application path: C:\Program Files\Fluent Search\FluentSearch.exe Faulting module path: C:\Windows\System32\ucrtbase.dll Report ID: ed504d7d-aad2-4ce4-b22d-d6fa504263e6 Faulting package full name: Faulting package-relative application ID:

This was around 14:46 UTC.

Thanks, did it crash during usage? Like searching? or in the background? Do you use a custom font in Fluent Search?

[FelicitusNeko]

It crashed while idle in the background. I did not change any of the font settings.

[adirh3]

It crashed while idle in the background. I did not change any of the font settings.

Can you please try enabling "Gaming mode" in the System Tray -> Enabling gaming mode, and let it stay in idle for a while to see if it's crashing?

[FelicitusNeko]

So far so good. Hasn't crashed yet. Gaming mode does seem to cut down its utility some, though.

[adirh3]

So far so good. Hasn't crashed yet. Gaming mode does seem to cut down its utility some, though.

It's not meant for normal usage, only when gaming. But knowing it doesn't crash while this is enabled will help me find the issue.

[adirh3]

@FelicitusNeko few questions -

1. Do you automatically switch your Windows theme?
2. Do you see other apps crash in the Event Viewer? interestingly the faulting DLL is ucrtbase.dll which I see many games online that crash due to it.
3. Are you willing to switch to nightly version or custom FS version to help me find this issue? This kind of issue (stackoverflow) can not be monitored by the app itself, that's why I can't see any error on my side.

[FelicitusNeko]

1. Yes, the wallpaper cycles every 30 minutes. I have three displays, so one changes every 30 minutes, and thus every individual display will change every hour and a half.
2. I'm not seeing any other application crashes which I can't otherwise identify/explain.
3. I can switch to an unstable version, but not until tomorrow.

[adirh3]

1. Yes, the wallpaper cycles every 30 minutes. I have three displays, so one changes every 30 minutes, and thus every individual display will change every hour and a half.
2. I'm not seeing any other application crashes which I can't otherwise identify/explain.
3. I can switch to an unstable version, but not until tomorrow.

Thanks, do you have FS to follow Windows accent color (Settings -> Appearance -> Accent color -> System color)? If so, can you try to disable it and see if that's the problem. Also, in the latest nightly version, there is a setting called Disable app background caching in Settings -> Apps (Advanced), can you try enabling it, restart FS and see if it's still crashing?

[FelicitusNeko]

Done. I'll report back either if/when I notice it has crashed, or sometime late tonight/tomorrow morning if it hasn't.

[FelicitusNeko]

After turning off "System color" and turning on "Disable app background caching" while using the nightly build, it still crashed. Same deal:

Faulting application name: FluentSearch.exe, version: 0.9.90.65, time stamp: 0x61735063 Faulting module name: ucrtbase.dll, version: 10.0.22000.1, time stamp: 0x00e78ce9 Exception code: 0xc00000fd Fault offset: 0x0000000000012815 Faulting process ID: 0x2bc Faulting application start time: 0x01d7eb091585379f Faulting application path: C:\Program Files\Fluent Search\FluentSearch.exe Faulting module path: C:\Windows\System32\ucrtbase.dll Report ID: a342ea60-2c99-499b-9505-4242ac85c5f4 Faulting package full name: Faulting package-relative application ID:

[adirh3]

After turning off "System color" and turning on "Disable app background caching" while using the nightly build, it still crashed. Same deal:

Faulting application name: FluentSearch.exe, version: 0.9.90.65, time stamp: 0x61735063 Faulting module name: ucrtbase.dll, version: 10.0.22000.1, time stamp: 0x00e78ce9 Exception code: 0xc00000fd Fault offset: 0x0000000000012815 Faulting process ID: 0x2bc Faulting application start time: 0x01d7eb091585379f Faulting application path: C:\Program Files\Fluent Search\FluentSearch.exe Faulting module path: C:\Windows\System32\ucrtbase.dll Report ID: a342ea60-2c99-499b-9505-4242ac85c5f4 Faulting package full name: Faulting package-relative application ID:

That's super weird, sorry but can you please double check that while enabling gaming mode it doesn't happen? Thanks!

[FelicitusNeko]

So far so good. Still running.

[adirh3]

Thanks again @FelicitusNeko, can you please try disabling "Search in app content" in Settings -> Processes? Unfortunately, since this kind of crash is not debug-able, we will have to try disabling features one by one to find the culprit.

[FelicitusNeko]

Once again, so far so good. No crashes, even with gaming mode disabled. Could this be the culprit?

[adirh3]

Once again, so far so good. No crashes, even with gaming mode disabled. Could this be the culprit?

It's most likely one process causing it. To find it, you can set it to be ignored in Settings -> Processes you can set "Ignore these processes for in-app content search", this will let us know which process is problematic. The UI caching is being invoked when you switch out from the process, for example if you switch from Edge to Explorer, then Edge will begin to cache. It would be helpful if you could check which program is causing it so I can reproduce this issue on my machine and fix it.

Thanks!

[FelicitusNeko]

I'm trying to add some processes to ignore, but every time I click the + button, an new entry comes up for "msedge" and it won't allow me to select it to change it to a different process.

[adirh3]

I'm trying to add some processes to ignore, but every time I click the + button, an new entry comes up for "msedge" and it won't allow me to select it to change it to a different process.

Will check that, try using the suggestion icon next to the setting name, it will show you all running processes

[FelicitusNeko]

So far, I haven't found any specific process I could exclude to prevent FS from crashing.

[adirh3]

@FelicitusNeko This might've been fixed in latest nightly versions, would be good if you can confirm. Will be pushed to stable soon.