After including bitcode in our app, we have this error popping up after the "processing" state on the Testflight web.
We have followed the instructions here: https://developer.apple.com/library/archive/technotes/tn2432/_index.html
to try and reproduce any issues locally, but archiving and exporting an adhoc build issues 0 complains, the archive+export finishes fine, so we're a bit lost. I've seen some posts where this falls on the apple side, but usually the issues are solved in a couple days. We have this issue since last thursday or so.