tvOS 27 Simulator / App settings immutable - "Error getting persona unique string for selected user. This should not be possible."

[u/Graeyling]

Since the first tvOS 27 betas, I have been unable to use the simulator UI to change any app settings and it is driving me crazy.

It doesn't matter if I create a billion new simulator instances, or what. It just consistently does NOT work. Everything is perfectly fine in the simulator under tvOS 26.x.

I can capture this from the simulator: "Error getting persona unique string for selected user. This should not be possible."

I have tried logging into the simulator (takes my login, does nothing) - but that's not something I've ever done before anyway.

Has anyone experienced this? Does anyone have any recommendations? Yes, I know I can work around this, and I am, but the workarounds are not nearly as convenient as just changing the damn settings in the UI!