×I decided to just watch the ending again today - no particular reason - so restored to the end of Level 25 and went down the stairs.

It started OK, and the text was all right, but then the demo for the first room came up - and it was not only not the right level, it wasn't even DD. In fact it was a room I'd never seen before. The same for the next two, then the level 4 demo showed me a room on level 7. For the "secret room" I got another room I'd never seen before, then I got the message that Beethro wasn't going to finish the story (because DROD couldn't access the necessary demos).

Nothing else in the game seems to be corrupted - ie I can play everything fine, which is what matters - but as I say, I've never seen these rooms before in my life. If it helps, they all have the "slime" style.

×the ending sequence keeps track of a list of rooms to show highlight demos from. There was a bug causing this list to get out of synch a player was imported (Stuart helped find this one, IIRC). So I'm guessing your player end-game data became corrupted when imported into the previous build, and it stayed corrupted when imported into the current one. However,

× to reconquer the rooms displayed in the ending and that should fix it.

×What intrigues me though, is where these rooms and demos came from... as I say, I've never seen the rooms before, let alone conquered them, and I don't think they're from any user holds.

Anyway, reconquering seems to work.