I asked @glennlab to sent a message to Admin when i coudn't get in, before I caved and set up my newbie account with yet another email Addy I never needed...I do not know what he tried.
i also messaged Admin from the original tablet, ( which still gos right to here) twice.
Over 2 days I tried a Change Password request on both the "old" cracked tablet and this new one.
Today I tried using the still-connected old tablet to try to again change my password. No sirree.
And crickets on all the messages to Admin...it has now been 3 days, Business Days, on 2 sets.
No Mas!!!!!!

@annewimsy500 Maybe Glenn will share here what email address he had used to get ahold of Admin.

As for the Agnostic app being the only app that didn't transfer over to your new device, I'm thinking that could be due to the fact the Agnostic.com app for Android has not been updated in years, and may no longer be compatible with newer model devices. That happened to me, as the app no longer shows up in Google Playstore, had to fall back on my apk backup file copy of the app in order to install it. Try downloading the app from a site like Aptoide or APKpure, that should work.

On a side note, if you ever need more of and or disposable "burner" email addresses, I would recommend this app, been using it for years now. Burner emails are useful if you sign up for something online and yet don't want to supply your regular email address(s).-
[play.google.com]

@SpikeTalon Thanks for the info!!!!

@annewimsy500 Surely.

I got back into Every account (in excess of 50!!!!) except this one when I used Smart Save +/or my saved passwords on Google.
Not one other app refused to recognize either my manually entered or Google-registered password like this one did.
I even tried old passwords....it was bizarre.
Very frustrating!!!!!!