Hi, I am having the exact same problem. Importing 2020 return in TT 2021 H&B (after the latest updates) shows the pop-up but does nothing.
Trying to open last year's return in TT 2020 H&B (which is updated) says error. I have kept multiple copies on different media, and it has the same issue for all of them.
Is there any workaround for this? How does one debug/fix this?
Neil
