A pretty simple bug that I have tested a few times. Adding a colon to the title of the map prevents it from ever being saved.
-Gnarling Warfare: Liberation
-War for the Overworld: Battle of Mayhew
-The Underlords Four: Deathmatch
-Evil Imps and Wretched Dwarves: Level 1
I wrote a bug listing a similar problem, but soon found that it was not completely random, but rather, was triggered by my maps having colons. whowouldathought?
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