CAD optimizer eliminating parts
I have an assembly i'm running thru the CAD optimizer on import and the appearance of the HIGH output are great but it is eliminating one of parts, technically the .ol part is still there in the .pvz but it has not surfaces in it. It's a sizable part volume wise relative to the assembly (assembly is a bicycle, the missing part is the handle bar). The part goes "missing" form all three of optimized outputs.
Does anyone have suggestions on .rcp file modifications that might fix this? or a location for good documentation on said files?
I have a poor work around that involves replacing the "missing" part in the .pvz file with the unoptimized version from the inital .pvz file. This works but is manual labor every time I update the 3D and also bloats the file as this one part unoptimized is way higher detail ans size than it needs to be.

