I haven't encountered a single problem in the HK factory (except for the encounter that should reveal the position of the factory fading to black, which has a well known workaround) while playing the leaked beta. Most of the problems I encountered were on M4-78, which was restored by another mod and will be made compatible with TSLRP when it comes out.
This is an issue with a texture that hasn't been fixed by the patch. I encountered it while playing on 1024*768 resolution. Lowering the resolution to 800*600 before entering the area solves the problem.