Stuck at custom asset loading - how to find out which one?

I’m working on a map. Seems like I’m pushing the limits of the engine too far with complex assets.

I’d like to find out which asset this got stuck with. It’s possible I just ran into a hard limits of scene complexity in a certain way, so it wouldn’t even matter which specific asset this is. Because it would get stuck at another one in the line anyway.

So, my question rather is - can I find out which “buffer” got over saturated instead? Is it too complex YDR geometry? YBNs? Textures? Something else maybe? Scene falls apart because of this (even vanilla map, missing textures, unloaded models etc.) and seems all my assets load in correctly when loaded by smaller pieces and not all at once.

And yes, I’m working on LODs as well. The problem is even with optimised scene, it’s not good enough. So, I’d like to focus on further optimising where it matters, instead of blindly focusing on something that might matter little to not at all in this regard.

I’ll appreciate any constructive feedback.