Using MacOS Mojave 10.14.3, 24GB memory with Arduino 1.8.8 on a 27" screen.
Opened the library and closed it twice after looking for a specific item which was not found. An error message came up that it could not find a data folder and it crashed immediately. No crash report came up either.
Restarted Arduino and it quit immediately after the splash screen appeared for a second or so and will not start up unless I restart the Mac completely when it behaves itself again unless I provoke this problem. This has happened with previous versions as well.
Tried to overwrite the app with a fresh download of the IDE and an error appeared saying the app was in use - it was not showing in the 'Force Quit' window anyway so a flag has been set by the OS!
Tried renaming the Arduino 15 folder but no use either.
Its a real pain having to restart the Mac to continue as I usually have quite a few apps open!
There must be an answer to this somewhere but I haven't seen it yet so I'm hoping someone here may know
Thanks
