Overrun by the Abyssal map wasn't overrun at all, just a normal map with some abyss

I ran a map and the 5% chance triggered on a nearby map (which was also cleansed), so I saved it and got all excited, went into it and there were a ton of normal monsters all over the place until I got to a small section of the map with like 3 pits.

The map stats say it's overrun by the abyssal in the map, but alas, it wasn't.

Really bummed, it was going to be a good map, burned an expensive waystone on it too :(

Bug Report ID: #855514882