If you have rooted your Android device in the past several months you have probably used Magisk to root your phone. Last month google updated SafetyNet which made Magisk useless in terms of easily rooting your device. Magisk was able to publish a quick update which bypassed the new SafetyNet measures. Google struck back again with a new update once again shutting down Magisk root.
The cat and mouse will continue like this indefinitely until Google restructures the way checks are performed. This happens due to the fact that Magisk is running as root and SafteyNet checks are not. This also means that the Magisk community will continue to have the upper hand.
Magisk has just been updated to temporarily bypass Google SafetyNet measures, and a full Magisk update will arrive soon. Google will likely eventually restructure the way checks are performed in order to stop Magisk from being able to update to avoid their measures. For now you can still enjoy the benefits of Magisk. Grab the update from the link below.
via XDA