Really weird..
So, if I open and save pdm01.rfl, I can parse it, but the room effects look all whack.
Somehow, room effects are able to load without significant issue everywhere, yet they seem unstable here.
Here we have effect UIDs: 131,155,235,370,371,609,610,611,612,657
However, what I end up loading is:.. 155,609,610,611,612,657. (not necessarily in order) And the rest are garbage.
So, 131,235,370,371 seem to be liquid rooms, and they are stored near content mentioning push regions, so it is probably some region / group related thing.
That doesn't however explain what all this other garbage is.