There is an issue with this Beta Release and Android phones as it relates to notifications. I and others have submitted logs on this and have been informed that they have found the problem and are trying to work on a fix. They will get it out as soon as possible.
Here is the quote:
Note: Some indicate that they are getting the HMS Notifications though. You can always start the app and don’t close it. You will receive the notifications until it has been fixed. This is what I do.