Player does not contain any children and cant be indexed. cannot properly save data

[bvetterdays (roman)]

This is likely a result of this update:

New Player and Character Destroy Behavior Enabled by Default

Hello everyone! We wanted to give you a quick update on New Player and Character Destroy Behavior. Background Late last year we announced New Player and Character Destroy Behavior, a change to reduce memory leaks on the server related to instances and signals connected to Player and Character instances and their children. As a quick reminder, our last announcement introduced the following behavior: When a player leaves the experience, the Destroy method is called on the Player Instance o…

Take a read and update your game’s scripts accordingly. Alternatively, you can disable the behavior via the property.

P.S. In future, make sure you choose the correct sub-category for your bug. This isn’t a Cloud Services Bug, it’d be more of an Engine Bug