Arguments out of range, program hangs

Sorry @AlanWatson --I should have asked if you were editing or undoing anything such as unlinking- I consider them basically the same thing…

I was going to say that after taking forever to set up a colored group ( my 1st), I couldn’t replicate the problem-- I had some pretty good music on and was FLYING thru the index list AS FAST AS I COULD with no problems-- used the arrows back and forth with no problems
and then BAM!!! It happened and now it happens ( almost always) every 3rd time–once in a while every 2 BUT usually every 3rd — doesn’t matter how I do it
Can do all 3 in list
all 3 using arrows or
I can do 2 in the list and the 3rd using the arrow ( and vice versa) and ARGUMENT OUT OF RANGE shows up
Probably took abt 10 minutes for the 1st one to appear and yes you are right, I was making no changes to the file at all…
As for CPU-- overall is abt 40 % BUT you have to realize that beside having the browser open, I have 4 RM files open, email and Amazon Music running ( which is most of my CPU)-- RM was only running between 1 and 4 %
@rzamor1 – we could open a support ticket on this BUT sending you our databases wouldn’t do any good as once you close out the database, it doesn’t happen again right away–after closing the database, it took me abt another 10 minutes to happen so no idea how many clicks – think you could replicate this problem with any database using a group set up with saved criteria BUT IF you want my file, let me know