I’ve got a problem with filtering a repeating group by custom states.
The repeating group only should show Things that contain a specific category (Selected Template Categories is a custom state which is a list of an option set; Template Categories is a List of an option set).
As far as I know, it will not work if you say ListA ‘contains’ ListB. You have to either break it up and say ListB:item#1 is in ListA or ListB:item#2 is in ListA and so forth across all item numbers. Or you can say ListA contains ListB:item#1 and so forth until all item numbers are accounted for.