Hello Gadorian,
The meshes are being occluded by the foreground objects. By increasing the bounds scale this should keep these meshes from being occluded.
The first post you linked suggests you’ll want to adjust the bounds scale to help with the occlusion that is happening.
It’s best to turn on the bounds so you can see where the distance is that causing the issue. In the viewport > Show > Advanced > enable Bounds. Then select the meshes and go into the details panel and adjust the bounds scale upward.