Widespread problems with joining headlesses

[Krzeszny]

Describe the bug?

Several friends including me, likely many more if I asked around, experience problems connecting to sessions. It seems to be only headlesses but I could be wrong.

Sometimes it gets stuck on Syncing initial state instead.

The loading bar gets stuck on Requesting Join until either the user joins a different session and then rejoins the former one, or the loading bar just disappears. Sometimes it spits out a "failed to authenticate SteamID" error, but most of the time it just closes.

To Reproduce

1. Start resonite
2. Attempt to join a Fur.Earthers headless
3. If you succeed, restart and try again (and be disappointed because it worked as intended 😛 )
4. If it gets stuck on Requesting Join, congratulations! You lose!

Reproduction Item/World

Definitely this headless but I don't know if it's only this headless

Expected behavior

Connecting is quick

Screenshots

No response

Resonite Version Number

2025.8.22.607

What Platforms does this occur on?

Windows

What headset if any do you use?

n/a

Log Files

DESKTOP-VHA2V7H - 2025.8.22.607 - 2025-08-25 08_21_31.log

Additional Context

I don't remember when it started happening but it happens around 30% of the time

Reporters

@krzeszny @falaredsan @Silvadel

[github-actions[bot]]

Hello! Here are the results of the automated log parsing:

Version	OS	CPU	GPU	VRAM	RAM	Headset	Plug-ins/Mods	Renderer	Clean Exit
Beta 2025.8.22.607	Microsoft Windows 10 Pro	AMD Ryzen 7 7800X3D 8-Core Processor	NVIDIA GeForce RTX 3090	24.00 GB	63.10 GB	Screen	no	Renderite.Renderer.Unity 2025.8.20.518 (2019.4.19f1) (WindowPtr: 0x110EF2	✅

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This message has been auto-generated using logscanner.

[ScarsTRF]

I've been getting these issues on my own headless's even with no one in it, when stuck on Requesting Join and the run shutdown on the headless, I was as the Request passes, then Syncing initial world state before disappearing since it was shutdown. It's like you're in the queue to join but never acknowledged until it's cleaned up which is where you join to a "joined" state to only then be kicked.

[ProbablePrime]

@ScarsTRF if you can share a log file this would help, Im not sure if this is the same issue as the OP, but we'll see.

[ScarsTRF]

@ProbablePrime it doesn't happen EVERYTIME, but if I ever get an issue with this again, I will immediately upload the logs as soon as I can.

And to mention, yes this is the same issue as the steps provided above are the same exact steps I get. This has also happened to, iirc, 4 other friends of mine trying to join my headless. All of them stating they can't join because they are stuck in the Requesting Join phase of joining my headless.