Settings > Moving & Resizing Modifier Keys > Move Windows
I have tried every combination of modifier keys possible, and I am still unable to Move Windows using modifiers. Nothing happens. Oddly enough, however, the Resize Windows setting still works perfectly fine. The bug only seems to impact the Move Windows setting.
Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.): trackpad, mouse, etc.
I've tried numerous settings, but theses are my current ones:
Additional information (e.g. StackTraces, related issues, screenshots, workarounds, etc.): I have quit or disabled every app that I could think that might conflict with the Move Windows setting, and nothing has worked. I also made sure to test with and without my external monitor ... and I've tried numerous other things, like only using the Move Windows modifiers (and not Resize Windows). At this point, however, I can't think of anything else. This appears to be a BTT bug. Thanks for any help you can lend.
@Andreas_Hegenberg I'm not sure if it's relevant, but I tried to take your advice here, and create the two BTT actions for moving windows that rely on clicking the mouse (just as a temporary thing until things get fixed). However, it didn't work either.
Interestingly, similar to the global setting for resizing windows with modifier keys, the resizing actions worked perfectly though.
As a result, the bug appears to be impacting the individual actions for moving windows (start/stop, etc.) and the global settings for moving windows with modifiers alone.
Sometimes when upgrading to newer macOS versions, macOS breaks its permissions database. Try to remove BetterTouchTool / BetterSnapTool from System Settings => Privacy & Security => Accessibility (really remove, disabling is not enough), then add it again. Make sure to quit the app before doing this.
I did it but it did not seem to fix it.
I did it in two ways. One way is like what you instructed, remove it and then add it again. The second way is to remove it and relaunch BTT and did it under BTT's prompt.
Edit: said to early. The function will randomly stop working again after some time. I have reinstall BTT. It works again after the reinstallation but stopped working again after some time. I say "randomly" because I don't know what was the cause.