Check where the game itself (i.e., data and .exe files) actually is. When I did this, I discovered that Minion saves add-ons on the C-drive, but, for my PC, the game's default location is One-Drive.
If they're in different spots, it's an easy fix: just move your add-ons to the live/AddOns folder with your actual game files. You'll likely need to reconfigure Minion to get it working again, though.
I have found the above advice to be inconsistent with my own game. My actual game files are stored separately from my addons/settings/screenshots. To anyone who tries to use this thread for help, it must've been dropped with no success.