Critical - Live Sequences desyncing or not playing for players (+repro)

So far the biggest issue I have with all my projects is that level sequences stop playing for players, causing the mesh that is about to move to be glitchy and when a sequence is meant to go up, the player gets full trapped because mantle doesn’t work inside a glitched mesh.

This generally happens if many sequences play once for a player, then they all have to play again for another. Happens on every lobby of my games atm, there is no avoiding it and only verse is a workaround, but really hard to do when there are complex animations involved, so we are stuck with broken maps atm.

This is a tough bug to reproduce, so the steps are a little bit weird, but they should guarantee a 100% repro:

  1. Play 100 stories ( https://epicgames.com/fn/3853-8042-3064 ) with two players on a private server.

  2. Player A has to manually go up until floor 51 (I tested until floor 80 on player one, but I think its the transition to a different area that causes it - it has to be manually climbed, no password for this step, not sure why). You can google walkthroughs.

  3. Player B plays and beats level 39 (door wont open, but “ding” sound will be heard, I tested going from 1 up to 39 manually, but maybe you can skip there and still get it, the password for level 39 is 7434). If it doesn’t happen, its highly likely to happen on the next 4 floors (ding heard, no door opens, can glitch through).

This now happens more regularly after last update.

I got it right when I joined in progress, on a server that was 100 mins long.