Error displaying XEN props

Hello! I’ve run into some prop displaying issues in my latest playthrough. I’ve had an Error message displaying instead of props in the first “XEN” brief scene at the end of the “Anomalous Materials” chapter, but didn’t really bet an eye on that. But getting into the actual “XEN” chapters, those props became more frequent, some times even resulting into invisible obstacles (I did manage to get through them, but still didn’t result in the greatest experience). Please let me know if that’s a common issue, or am I missing some important files?

Also, ran into improper door clipping in “Surface Tension” chapter on map bm_c2a5d, on the scaffolding walkway, one with the rocket launcher.