After upgrading from UE 5.7.4 to 5.8.0, I’m experiencing what seems to me like a bug where level sequences sporadically freeze for a few seconds (from ~2 seconds to 10+ seconds) before actually playing. So, the sequence freezes at frame 0, then plays as expected. I’m seeing this in packaged builds (at the very least, DebugGame, Development and Test, but I think Shipping too). It’s really difficult to track, as it only happens once every 10 or more play sessions, and only after a certain point through the game that seems random. However, once it happens for the first time, it happens every time. I’ve been trying to debug this for days now, but I cannot find a consistent pattern that triggers it.
My sequences were playing (and still play) fine in 5.7.4, so this seems to be caused by changing to 5.8.0. Of course, this may not be a bug, but just a change in how sequences behave in 5.8.0. However, I wasn’t able to find anything that could explain this.
Any ideas about what could be causing this or potential fixes? Is anybody else seeing something like this?