stp import

I'm trying to convert .stp files to bent plate but it isn't going as expected. I have received STP files produced out of TEKLA Steel Structures. Tekla doesn't do a very good job at detailing bent plates hence why I'm trying to do the conversion. One of the files (p1312) did goas I expected...

I've got a plethora of STP files from a supplier ranging in size from 700KB to 24MB. They are all STP's of assemblies so contain multiple sub-parts. Now ... I can open them all in MOI 3D, they are all complete and take a max of 15 seconds to open for the 24MB files. However, in AD 2017.1 with...