Wave count stays at 0/x and not updating.
Yeah, the wave counter and sometimes the Aether counter too is broken, but the event works, you can complete it and get rewards. Whenever you start a wave, the wave number appears on screen briefly, but hopefully they get it fixed soon.
Altars sometimes get bug, and they range turn off and didn’t get mats after you kill all kills it need. So day by day, game is more and more bugy. It looks like they have big problems with patches, fixes, and at all bgame balance.