Control group by data grouping causes Counting in progress forever.
Hello, I'm trying to use a control group for the recipients that their @1716897 ends with "10".
The way I've done it:



When I execute it freezes in the "Counting in progress" state:

The delivery has a valid target and if I don't use the expression Mod() this doesn't happen...
Any clue of how to fix this? Thank you in advance!

