Some objects showing partial (or hidden)

I found two strange issues. 1. In TBM930 at FO yoke AP TRIM button showing
partial (but in gltf model button without problem) How it look
And how it must look
2. Second issue in CRJ550 by
Aerosoft. When i use drone camera and fly near a gear, some part will disapear
when i come closer. No issue position

Then i move camera little bit
closer, and wire parts disapear
So, my question is: It’s normal behavior or it’s a bug? If it’s normal, how i
can handle this? How i can set some object partial visible or disappear by
distance or something like this?