[Not a bug] r3574 r1365 monsters fall through 3D floor

[Kappes Buur]

I have monsters 2 units above stacked 3D floors. With r3574 (r1365) they fall through to the next lower 3D floor on startup.

[edit] removed maps for obvious reason

[unknownna]

The demons are inside the 3D floors, not on top of them. For instance, the demon in the screenshot below has its z position set to 377 map units. The corresponding 3D floor ceiling height is 385 map units and the floor height is 375 map units. The tall techno floor lamp doesn't fall down since it's not inside the 3D floor (z position set to 390 map units).

[Graf Zahl]

Ok, in that case: [not a bug]

[Kappes Buur]

How embarassing

I cannot explain how this happened except for my inattentiveness.
Sorry for the inconvenience.