(https://i.imgur.com/nLyJwmj.gif)
In specific height and location, slider lemmings don't turn around and keep going to their original direction even after falling.
Quote from: Discordit looks like a situation where handlign for a couple of edge cases, has itself resulted in an edge case
This appears to be the same bug as IchoTolot's topic here: https://www.lemmingsforums.net/index.php?topic=5826.0
I've now fixed this bug for the next update.