Festival hall works crazy, skips productions or buff additions. This time after two cycles instead of 102 gave 64 - which is less then basic production (basic should be 68) without buff although 50 % buff is running all the time. Previously, when I was watching, one of the channels only gave buff boost, not basic amount (6 instead of 18). When I tried donate after each channel finished, all 3 gave correct amount. As it is it's basically stealing about third of my production. This way the event is pointless. Somebody help me. Don't want to hassle with support. It's only 2 weeks event.
EDIT: Checked another cycle, instead of 51 gave 39 - skipped basic production (12) of one of the channels.
Edit 2: Next cycle gave 34 instead of 51, which is exactly basic production without buff boost (buff still ruining with over 4 hours left)
So it's intermittent bug with no logic at first sight.