So I wasn't able to find a solution for this one anywhere, even in this forum.
I am using the ActorSequence to animate an animated FBX with 2 animation tracks.
The weird part is this only appears when using cooked but not on live sync.
I've been troubleshooting this error for weeks now and I'm a little behind schedule. I couldn't replicate the error on Epic's UE with the same version, so I'm assuming that this only happens on Aximmetry UE.
If anyone has a solution for this, please provide me with some information or patch files for this specific error. That would help me a lot.
This one ( https://forums.unrealengine.com/t/ensure-condition-failed-on-level-load/509428 ) says that it was solved by taking care of the default pawn (whatever that means).