WOW, thanks to this thread I was able to get ToastMessageShow to start showing up again.
I think this has something to do with changing to to SDK 29 more then anything else, my previous version was 28 or under.
Because I hadn't updated my App software on my phone in sometime.
But before the update I was always seeing the ToastMessageShow after the update the ToastMessageShows where not showing.
Drove me crazy until I searched the forum.
Turned back on the notifications and everything is fine. Will have to consider SDK downgrade to see if my thoughts on the new SDK in manifest triggered the problem.