I am actually able to create this JWT error when filling back and forth between TestFlight and Xcode installed versions of my app. Perhaps of note, I delete the version (either Xcode or TF) and then install the other. Somehow this sequence of changes causes the JWT error to happen on a device. I'm not actually sure how to get OUT of the scenario other than waiting.

Well.... have been frantically searching for solutions, as others were not able to recreate. Just in case anyone ever runs into it again here is what I did... Deleted my dev devices from developer center Disabled developer mode rebooted the devices Unpaired the devices from Xcode Enabled developer mode Reinstalled the apps After all of that it suddenly started working again. 🤷🏼‍♂️

Perhaps worth noting... iOS 18.5. Have tried multiple physical devices and am encountering the same issue across all of them.