Hey Flak! Can you please explain why hidden property validation was even added? I have a whole post explaining why I think it was a very bad addition here: Remove/Revert the Illegal Property Override errors [CRITICAL] - General / Issues and Bug Reporting - Epic Developer Community Forums
You wouldn’t even normally be able to overwrite these values without manually changing from a text editor, and if you do that it most likely means you know what you are doing and need those values. There should be no reason for this to exist.