App does not show up on menu bar
From the activity monitor I can see the program is running. However it does not show up on the menu bar so I do not know how to control the behavior
The menu bar is not full because it still does not show up after I close some apps on the menu bar
This is indeed unexpected. Right now the default behaviour is to quit when you drag the icon out of the menu bar.
Do you use any third party menu bar managers? At least in your screenshot I don't see anything unusual.
Will the icon re-appear when you restart your Mac… or in the worst case when you delete the app and install it again (from the website or via homebrew)?
No I did not use any menu bar manager.
I tried restarting, deleting and reinstalling it through both website and homebrew. They don't work.
~~I am also experiencing this and also tried full reinstalling.~~
~~v1.6.7 / macOS Sequoia v15.5~~
~~Edit: I also have Activate on Launch enabled and the laptop still goes to sleep after a restart. No clear way to even use the application to keep mac awake.~~
Edit 2: As it turns out, I had too many items in the menu bar. I've never had to deal with this before (it's always appeared full) and it used to always show the KeepingYouAwake coffee icon so I assumed something went wrong after an update. Apple really needs to make it clear there was hidden items...