I'm using v3.6.26.5, and in the saved game attached, at the 14:58 mark, using the pneumatic drill doesn't operate properly. The terrain is slightly affected, but the worm below isn't touched, and the worm operating the drill goes nowhere.

Thanks, Patrick. This is a known issue, in fact (see under "Playability issues" under "4.0 - Known issues" in the readme). The cause is that when a worm is auto-placed, it is "floating" 65535/65536th of a pixel above where it would be if it landed from a fall or jump; walking does not change this. The worm doing the drilling was "floating" just a bit too high to reach the worm it was trying to hurt.

I posted a replay of this in 2005 with the same three words in the thread topic: Pneumatic Drill bug? (http://forum.team17.co.uk/showthread.php?t=23074)

It's funny seeing another example in a real game.

Haha, indeed!

Just for kicks, here's the first time I ever saw the drill glitch.