So I remember this problem from a while ago and it seems to be occurring again. While using /b e lift these bunch of random blocks appeared. Have also been having a problem where be using for example /b b, and one or more of the balls won't actually appear unless I try to place a block where the sphere / ball should be. This has been occurring with other V/S commands too. Undoing and redoing also seems to be doing the same thing. E.g I'll undo something and the thing I'm undoing doesn't undo. Or say redo and it doesn't redo. Attached below is a photo of the floating blocks
Something similar has been happening to a friend also. The floating parts are clearly there for me and him but for other people its not there.