I noticed the bug when trying to add a VST Plug In Directory. The path to the desired folder on my laptop shows up, but when I reload the app to refresh it properly the directory is gone and the plug-in obviously does not show up.
Same problem with hooking up an external midi device. I activate all the settings and as soon as I restard Arena the settings are gone.
What could be the issue? I even tried to manually insert the vst directory into the .xml files but nothing works.
(I'm using Arena 7.13.2 on a MacBook Pro 2017)