Beta in singleplayer PVE ran fine with just cauldrons, I could fire gas arrows and use explosives no problem. I added archers, and every time I use gas arrows or bombs now the game immediately crashes with a system error including - FExternalDeferredActionQueue: Trying to enqueue to a full queue - which sounds like an overflow?
It still does this after the recent update to beta.
Here’s a video that ends with the crash.