Unable to Launch Session due to UEFN Validation Error: Soft package <Level> is not referenced by any soft object path in asset

By now I have been able to track down almost all of the following assets that throw:

LogValkyrieValidation: Error: Found disallowed object type

as mention in my bug report at:

It occurs to me that any standard gameplay Device (design-time definition of) setting a User Option - Function trigger event by any other Device will cause such “disallowed” error.

Why would (I think) 100% of my (zero coding) gameplay get invalidated since October 2023?

Or is this a side-effect of corresponding Soft package error or vice versa?

To longer I spend on this to more I feel these errors are related… but what is the root cause and how to resolve?