iOS 12.4.3
iPad mini 2
Plenty of free space, > 3gb
App version v1.13.0

I hit sign in, and it says signing in with Microsoft account, and then it just crashes. Disappears.

Tried removing app and reloading.

Tried hitting sign in with Microsoft account and it immediately crashes.

I have a screenshot where the marketplace is throwing an error saying I am at risk of losing packs purchases on this device, and that I should sign in to avoid losing them, and have them transferred. The app crashes before I have the chance to sign in. Very frustrating.

Tried updating the iOS. No luck. Tried making sure there are no other packs or add ons. The app just crashes repeatedly and won’t allow sign ins.

I’ve tried my account, which is the parent Microsoft account, and my son’s which is a child account to it. I even went in on microsoft live account level, and disabled any content/app restrictions, for fear that was messing it up. Still doesn’t work.

I really don't know what else to try.  I've clicked to clear content history, and clear sign in history on profile settings (if I could be quick enough to do so before it crashes)... But nothing works.  No matter what, on this device, it will not let my son or anyone else – sign in.  I could sign in as my son on my iphone's Minecraft PE, and there again it crashed out there too. 

Minecraft is/was really big with our family but I'm about ready to give it up.  We aren't having as much luck lately as we are having glitches/pains, and that's hard to admit.  Please help.