While moving a non-straight wall, with an SVG cutout door, the 3d window suddenly stopped showing the move in the 2d window (however, the focus of the 3d window kept shifting, and the door moved further than the cutout). When I closed the file, and reopened, the 3d window was correct. Probably a random glitch, but it never happened before.
And this you probably know. I (accidentally) opened a URL to the online version on a server and got this:
ok