Where are the parameters and the possibility of a theme stored in the profile?

Question

Windows

It's not the first time I've come across that the profile is "beating" and not applied. Themes in Personalization
, the maximum wallpaper and background can be changed, and everything else is ignored
as an indicator, even "High Contrast" does not affect anything.
At the same time, it's not about crooked patches / updates. in a freshly created profile, everything is ok
. Is there a chance that there are experts here who know where in the appdata registry what to remove to make it work without killing the profile as a whole?
ps win10\server19\server16