I am developing an app that uses CloudKit sharing. I recently upgraded my iPad to use 23A5336a. After that upgrade, I can no longer accept a share that is sent to me.
I have rebooted the iPad and logged out of the iCloud account and logged back in. Every time I get a share link and tap it, it says:
" The owner stopped sharing or your account (xxx) doesn't have permission to open it"
This same code, running on the iOS26 device can share with device running iOS18.
Is this a known defect? Anything I can do to help resolve this issue?