I have a bug, this is a pretty strange scenario so I'll try my best to describe it lol.
I have a large space station up in the sky and it's supported by several 64x cubes. Every once in a while I will destroy any random brick, with a hammer, and the entire build will be destroyed, as if I broke a floating brick. But I will still be able to walk on the build, it's just completely invisible.
It's pretty much like I only deleted the build to my client. When I rejoin the server it's back to normal.
My best guess is I haven't ghosted the supports so it thinks that I am breaking floating bricks, even though I'm not.