what i tried was saving and quiting and nothing funky happens:
i used reveal, possessed a dwarf, saved the game in adventurer mode, quit the game, restarted it, returned to fortress mode, and used reveal to hide the tiles again (i had left the process open), and it all worked flawlessly
Perhaps this process could be automated for a possible two way "Fortress>Adventurer; Adventurer>Fortress" tool? It shouldn't be that difficult, right?
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In other news, I did some experimenting on my own. I have a massive fortress where it's impossible to change into adventurer mode - as I've written, the keyboard doesn't register any keypresses, as if the game looped in the first step of adventurer mode forever. DF
is responding, I can change the mode back, though it becomes very messed up and generally doesn't work.
What's strange is:
1) I let it run through the night to to avail so it definitely isn't an FPS issue.
2) On an earlier save of this fortress, changing to adventurer mode worked perfectly.
I can only assume something happened later in the game that prevented changing to adventurer mode. Possible causes (I'm just listing any differences between the saves I can think of): ongoing ambush, ghosts on the map... can't really think of anything else. Hell is revealed but an earlier save with revealed hell worked no problem. It would be really interesting to know what the real cause is.
If anyone wants to try to find the cause of the problem,
here is the save. Since it is a massive succession fortress (the current SA let's play) I'd be forever indebted to anyone who makes it work so I can do crazy stuff in the succession. Please don't take this as a request, though. I'm just providing material in case anyone is interested in finding little bugs and issues.