I use Digibyte's Android wallet but one of my largest deposits from around 6 weeks ago has gone missing.

I tried to recover my wallet, and it's now synced up to today's date, but that deposit which represented about 1/4 of all of my crypto assets is not reappearing.

I looked at Google Play store comments, and despite a 4.5 star rating, people are writing many comments about DBG gone missing in their wallets. I now feel like a real sucker.  What's going on?