User preferences, at least for volume usage, resets itself. Time machine usage periodically warns me that free disk space is getting low (15% the default). I've changed this to 5% but after about a week, it's back to 15%. Same story for its checkbox and for the main Volume Usage checkbox.
I've reset Home Permissions several times and restarted, but after about a week, it's back to default.
Techtool Pro 11.0.2
Mac Pro 10.14.4
I've reset Home Permissions several times and restarted, but after about a week, it's back to default.
Techtool Pro 11.0.2
Mac Pro 10.14.4