Bug (?) Brave v1.78 does NOT remember customized non-default Shield Up settings beyond Exit+Restart

I setup my Shields Up global defaults for my Brave v1.78.90 (in Windows 10) to be always up in general.

Then I load maximal simple https://www.google.com and disabled Shields Up in toolbar Shields Up symbol drop down for this site completely.

And yes, immediately after that google.com appears in

brave://settings/content/braveShields

as an entry in section “Shields down”.

So far everything ok.

Now I exit and restart Brave and …

…Shields Up is automatically up again for Google Website.
The entry in brave://settings/content/braveShields vanished.
Very bad.

Brave does NOT remember these settings beyond exit and restart.

Why?