Cant save plugin preset Mac

When trying to save a preset in VST3 version of Trackspacer plugin heres what happens:

I press on save preset, then dialog box opens then I enter preset name and hit “OK” or “enter”

Then dialog box closes and then immediately reopens with name still in field, I hit “OK” again - same thing happens. Have to hit cancel to exit, preset never saved.

Presets save fine in VST2 version of trackspacer but that version requires cumbersome sidechain setup procedure so not as useful.

Ive seen similar issues discussed on forum (C7 and C6) and tried solutions discussed there but most were on PC. Same thing happens in safe mode. Seems to be related to Mediabays inability to find proper folder. Anybody with similar experience or possible solution?