Uninstall your magisk manager and use the one I sent below. This manager will allow itself to be hidden but won't grant root permissions to any newly installed apps asking for root. All the previously granted permissions will remain and you'll need to reverse the process to grant any more apps root permission then reinstall Stubs again. Just the way we have to do it for now.
Is there any actual fully functional magisk version for A11 out there instead of having to do this steps?
That's literally the only thing holding me back from moving to A11 , last time I tried even with stub version one of my bank apps didn't work no matter what because safety net fails.