So I was going through my buyer's account on the app and combing/trimming down wishlists that I've made. I went to go rename a few because they started doing that thing where certain characters would show up as a string of numbers and symbols (eg: an apostrophe shows as "'"). When I go to fix it, I won't save and I get given an error saying "the mapper function returned a null value." No error codes or anything, just the message. Has anyone else had this issue/knows how to fix it?
Nope, but it sounds like a bug.
@WildSwanDesigns: It sounds like an untrapped error that Etsy will have to fix. The "'" is HTML for the apostrophe.