[KevinH]

Unfortunately, this same problem will exist every time this plugin is updated on macOS. And I do not think a preference setting will help. FWIW, since a chmod is cheap, in plugins I simply just use os.chmod for macOS binaries on every run. We did this in flightcrew and in AccessAide. Not sure how to detect the plugin changed when the preferences did not.

Perhaps include a new datetime value hardcoded in every plugin and check if prefs version of that value is different from current and run os.chmod if not equal.

Of course reinstalls of the same version would still fail.

The only other approach would be to run os.stat and get the st_mod bits and check if execute permissions are set and if not set them. But just setting them each time is easier which is what we ended up doing.