Hello,
I just switched the wrap-around in the viewer from yes to no, and when closing the preferences window I was promted with a pop-up-window telling me I had just changed the relation rules (see screenshot). I didn't, and I haven't for weeks.
I could not reproduce this, though.
I sent you the log file by email, Mario. IM 2020.5.2.
Stef
Let me know if you can reproduce this.
Chasing one-time issues is usually not useful.