For everyone having a problem with Pokemon Masters just dying pic/vid related
https://youtu.be/CO8lIBvc__Y [Embed] with a Rooted Phone (with Magisk)
1st : Go to your Magisk Manager -> Settings -> DenyList and look for Pokemon Masters. Uncheck it all. Exit the manager
2nd : Start the game. If it still crashes, that's fine.
3rd : Go back to Magisk Manager, go to DenyList again, and this time recheck Pokemon Masters check box (there should be 2)
4th : Try it again.
If you still are having crashes, update your Magisk and your core Magisk files.