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Old Yesterday, 10:30 AM   #1
afthvanderheijde
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Question MacOS Stuck on Initializing User Interface

Hi, my calibre is not working anymore.

When I start the application it gets stuck on 'initializing user interface'. I tried reinstalling, using an older version and using a preview version. Nothing works.

I also ran '/Applications/calibre.app/Contents/MacOS/calibre-debug -g'. This is the output:
ApplicationPaletteChange event ignored
Using calibre Qt style: True
[0.00] Starting up...
[0.02] Showing splash screen...
[1.18] splash screen shown
[1.18] Initializing db...
[1.21] db initialized
[1.21] Constructing main UI..


So again here, stuck on constructing the UI.

I'm on Calibre 9.6.0, but as I said, the older versions don't work either.
I'm on MacOS 26.4.

Any help possible? Thanks in advance?
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Old Yesterday, 10:48 AM   #2
kovidgoyal
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That looks like its stuck somewhere in Qt code. You can try using some macOS tools to get a stack trace of a process (cant recall what they are of the top off my head but google will tell you). The stack trace might give ussome idea where its getting stuck.
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