I am experiecing this - mainly with Chrome windows (could be a coincidence, beause that's what I almost always have open), but I can't reproduce it with your instructions. I am not sure how to reproduce it at all, but the result is same - window moves to the left-most workspace. In my case I have four horizontal workspaces, so the window(s) seems to move from the 4th one the 1st one, but am not 100% sure, since I can't consistently reproduce this. The window is similarly aligned, with only the left side visible on the workspace.
I am experiecing this - mainly with Chrome windows (could be a coincidence, beause that's what I almost always have open), but I can't reproduce it with your instructions. I am not sure how to reproduce it at all, but the result is same - window moves to the left-most workspace. In my case I have four horizontal workspaces, so the window(s) seems to move from the 4th one the 1st one, but am not 100% sure, since I can't consistently reproduce this. The window is similarly aligned, with only the left side visible on the workspace.