This remains unfixed in 16.1 beta 3. The report FB11563817 remains without resolution or comment from Apple. Does anyone know how a developer gets some sort of feedback?

Hi @freyherme, Did you file a bug report on your issue? Would be good to get as many reports in as we can, so Apple fix the issues. So far they have not responded at all to my report. I even tried using one of my two tech support queries I get per year to ask for a work around, and was told there is no work around and the issue is still under investigation. It's scary not getting any feedback, and basically just hoping Apple fix the issue before they release — if not, my customers are going to want their money back and I don't control that side of things either as it is all through Apple.

This seems to be fixed in iOS 16.1 beta 4. Crisis averted! @freyherme, I was just about to message you and ask if you had a fix for Calendar in the beta. Seems you do, so great news! My bug report is still open, and never received any updates from Apple. That's frustrating. But at least they fixed it.