Ultimatum not giving rewards for some rounds

Bug Report ID: #3875430481

Had a bug on 2 separate ultimatums where the next reward window was empty, on the first time it was only for one round, however with grueling gauntlet, catalysing scarab and inscription scarab, I've had no reward from round 9 to round 13.

https://prnt.sc/Wy7U1b4y5shS