Naming glitch when importing docs into MN

I’ve been importing new documents into MarginNote 3, and have noticed that it now tacks on a number into parentheses.

Is there any way to turn that off / fix it so that MN3 doesn’t do that?

It’s not a massive problem, but it does force me to correct the file naming schema for all of my imported docs.

Thanks.

No joy…?

Well, I hope it can be fixed. Thanks!

Wondering if @Support-Team has noted this issue and can fix it. Thanks.