Help with 3D models

[jmedinaEEF3T]

I'm trying to mirror some objects in my drawing to cut my workload in half and skip all the double checking but when I go to mirror AutoCAD freezes up and even when utilizing one of the top tier computers in Vagon I still get the same issue despite having 64GB VRAM to use. I don't believe the file size is too big (just about 1GB) and I would think with all that VRAM it should have no issue mirroring a large set of objects. What am I doing wrong? Any and all suggestions would be much appreciated. 

[paullimapa]

what if you select the objects in separate groups and mirror them separately as well?

[Valentin_CAD]

@jmedinaEEF3T ,

Not sure what version you are using, but this link provides some suggestion:

• About Large Object Limits and Drawing File Compatibility