I have the same issue. In the past Airtable apps/blocks have failed until I cleared my browser. Now, on Catalina, I can’t run blocks at all in Chrome. Opened Safari (which I don’t use) and apps/blocks worked.

I think we’re all wanting what @Artem_Dzyuba described above. Not grouping on a specific field, which has easy ordering, but grouping on a linked field. Where the only options are alpha. Or some crummy workaround where you put a number in the name to...

I cleared browser cache (after trying in incognito) and my Apps worked again. So feels like a bug - tables were working fine otherwise.

+1. Same issue. Multiple tables. What gives?