Hey there - are you using a Mac? I downloaded your file and had a go and encountered the same issue. Then I noticed that my Mac was converting straight quotes to curly quotes on the fly. Curly quotes will break repeater filters.
I’m guessing this is something Apple have flipped on by default in a recent update. You can turn this off by going to System Preferences > Keyboard > Text and unticking ‘Use smart quotes and dashes’.
Although come to think of it, this might be a bug introduced at the Axure end, if the field where you enter formulas is seen by the system as a regular text field and thus eligible for things like ‘smart quotes’. @Alyssa_Axure - this might be a bug? I had not seen it prior to the latest release.
Yep, we’ve got a ticket filed with QA regarding smart quotes interfering with repeater filters working properly, just to confirm here for y’all! Hopefully toggling off that setting in system preferences works for people in the interim–thanks for posting that!