I recently played The H. World after DLing the latest RnD version once again, and then wandering around aimlessly, I noticed a deadly bug. It's possible that I caught another one as well...
When the

enters the

at the top side, the player dies.
However, when the

enters the

from the following pipes at the top side:







, the player dies and along with it, the pipe that the figure was previously entered disappeared.
I even had

go around where the disappeared pipe is, and it's now officially

.
And then I wondered, is it possible that the bug can be reproduced at the other three sides of the acid?
When the

enters the

at the bottom, left, and right side, the player dies.
But, when the

enters the

from all the pipes in any way but the top side, the pipe didn't disappear. Even more interesting, the player didn't die upon entering the acids while inside the pipes.
However, I somewhat question if older levels support this in order to simply "link it up" and simply not die by the second bug. Just asking.