This is already known since the release of it, 0.9.21. This "bug" is something that might not be fixed any time soon. In Warp Mode, when you get to the edge of the map, you get teleported to the opposite side of it, meaning that the rope would be glitched if that would be a thing.

Whatever how old this bugs has,,, even it was a pa and even more if it was a fossil,,,
JUST FIX THIS BUGS ! This Ancient is very annoying .
Warp Map is best for me,,, but that is the "Crap On A Sky Castle",,,

If "NO ONE KNOW HOW" ,,, Ask googles
If "ITS TOO HARD" ,,, More Harder Coding
If "NO WAY TO DO IT" ,,, Re-code with other scripting !
If "ARE YOU CRAZY ?" ,,, Damn,,, why you ask it ?

Im tired being drown

I didn't really fix the bug, but instead I changed the rope so that it just gets insta-destroyed the rope when you try to shoot it through the world-wrap border (no matter if flying, attached or on the ground). So at least the weird graphical glitches which occoured when you tried to shoot the rope through are now fixed and it is now clearer that you aren't really supposed to rope through. At least not for now.

Still, I completely agree that in the long run the rope should work like normal through the border but I didn't bother about it so far.

These fixes will be visible in the next release.