I’m not sure whats happening but some of my meshes within my PLA’s arent registering with the surface cache. It seems to happen depending on the PLA itself, as some do it, and some don’t, even with the same static meshes.
None of the meshes have nanite enabled, no LODs, and the import scale is normal from what I can tell. Any ideas on what I need to do?
Opening up the BPP I’ve noticed that the meshes that don’t have a surface cache are named as HISMs and the ones that do work are ISMs. Not sure how to resolve that, or why it’s doing that in the first place. Any help would be great.
So is possible to convert an HISM into an ISM within the blueprint? Or disable HISM in general?
If not, I would be left with regular Level Instances, or combing everything into a standard non PLA blueprint, but I’m not sure what the performance tradeoffs are for any of those.
Did you find a solution? I am facing the same problem…
I actually found a solution by accident: just enable nanite for the meshes that have a problem and voila: it works 
