I've been working in a drawing in VWX 2021 for the past few days, and some of the base 3D Geometry is referenced from another file. I've found that all of the 3D I've drawn in the document shows up normally in Top/Plan, but not at all in 3D. However, the referenced geometry shows up no problem. This is not a classing or screen/layer plane issue, and seems to happen at random - the only way I've found to fix it is to reboot the document several times. Is there any setting that could possibly be causing this that I'm unaware of?