System and IINA version:

• macOS 13.0
• IINA develop branch f047d5b

Steps to reproduce:

1. Run a debug build of IINA, then open up its Settings window and go to the UI tab.
2. Check the log in XCode to find the errors (they will not appear in iina.log).

However, it's more useful to enable the purple visualizer thing. Run this in a terminal window:

defaults write com.colliderli.iina NSConstraintBasedLayoutVisualizeMutuallyExclusiveConstraints true

Then follow the steps above again, and you'll see this:

Also, click the Customize... button to open the OSC Toolbar customization dialog and you'll see another one:

How often does this happen?
Always