Can't update Privacy and Online Safety Settings - Unexpected Error

Same thing happening for me - for at least half a year now. Should it help in anyway: when attempting to save any changes the first time, the requests results in a 404 Conflict with the Message "Call to Privilege Settings Service resulted in a conflict.".
Trying to save changes after that, won't result in any errors, but no settings are actually changed after reloading the page.

had this problem for over a year, am on PC trying to change settings, get the same error every time. I am also mad that not many people have this problem so it's hard to get a good answer, and not even the Microsoft support can help me.

This is the same problem that is there with me also. Really wishing that Microsoft will solve it.

DUDE Im facing the exact same problem. Did you ever figure it out? Ive contacted support and they said its a known bug and they were working on it. I really need to fix this because my realms subscription in just passing away without the owner on it....

Dear Microsoft the problem with Minecraft W10 described above happens even for adult accounts. Of course I've tried also with child account with required permissions. The same happens in both cases. So it's not related to child's account settings if adult
account cannot connect to the multiplayer servers. Please do something with it.