I see this posted in Thread #1:
Duplicate GPU and RPU deductions. Some Global Premier Upgrades (GPU) and Regional Premier Upgrades (RPU) show as being deducted twice. We're working to resolve this automatically and will post updates here

I had 2 GPUs disappear from my account.

From what I can see from account activity, they were pulled on a random date in February. I had no activity with United on this date, either reservations or flying.

I have no idea if this is something different than the "known" problem as listed on thread #1.

Anyone else missing GPUs with activity on dates that do not make sense?