The old one about jumping bitters (green ones over the void gap in 1.1.21) was triaged as not-a-bug.
That thread is here,
That video [31 sec] is here.
# WAHT?
When you see the wall and the bitters on the other side...
Even if the wall is unbreakable for you, fear not, the bitters shall arrive! maybe. Sometime. When you see them not.
Featuring jumper bitters in a number of defense maps and scenarios.
# HOW?
Well it was obvious that the jump thing should jump. But we believed it should not...
The fastest repro I know of is in the footage.
Lads and gents, today! we have the little ones jump over the walls as some jumpy little goats! All for your pleasure and fun!
Here is the YT PoC vid [48 sec] of 1.1.25 nomods.
The last part with jumpers is in fact x1 speed.
and here is a save file. Same as with an old one just load it to see more jumps.
Best regards.
your B.E.S.T* jumping teacher in factorio jungles.
Or would I need to make a cliff
*(Results may vary! Needs more testing. A lot of it.)