Sorry for taking time... I have tested a lot this myself and have not been able to reproduce this.

But those logs... There doesn't seem to be any indication that RingingRestorer would change the ringing profile. BUT the logs do show that RingingRestorer sees that the profile was changed to "general". So it seems something else is changing the profile when you unlock?

You can try stopping RingingRestorer if this peculiar behavior continues. But according to those logs it doesn't seem like RingingRestorer is doing that.