This is the level 6. One of the Slaughterpens exibited this glitch.
Confirmed on Level 6, after the screenshotted slaughterpen is captured.
1. Start C6
2. Reveal FoW
3. Clear out units in area
4. Convert nearby tile to player faction
5. Drop imps
6. Await slaughterpen capture
It seems like a general issue. Just came across a 3x3 Torture Chamber on the level 10 that had the same corner glitch. And earlier a Slaughterpen was found with this glitch again. Do you think the Stone Bridge capture glitch I have reported before has anything to do with this? From the looks of it, some tiles visually disconnect in a similar manner, forming whole new 1x1 rooms.
Many Preplaced rooms which are get converted haveing such 1 tile mess.Almost every Campaign level I can think of is effected by this.
Fixed in current build
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