I can't see it. You might try running the obfu redirecting stdout to a file, then cutting and pasting the offending shape so we can see it. I just did that and the 5th image (a half size Saturn) looked ok to me and was 21 lines long (exactly half the 42 lines in the obfu). Here it is.
I see the same effect. Moreover, during Saturn's left-right dance, the bottom of the rings is always displayed at the lower-right corner. But this is only a visual effect, I tried OP's suggestion of redirection and all seems good.