Make sure under settings, Magisk hide is enabled
After installing this fix if you still can't pass the CTS then join the XDA
here
https://forum.xda-developers.com/apps...
And then send him Magisk's log and ask him what next to do. " Didgeridoohan" that his ID same guy to ask him you are missing fingerprint under the list here
https://forum.xda-developers.com/apps...