since the olden days most people removed ama in their tilesets and left a blank tile there so they could put their guy in the room where they wanted him for the message string.
That slot now, although empty, is placing a black square in all of my string rooms where the guy would be standing.
This just started after I was doing the 8 bit recoloring and reported that bug, at the same time these two things happened I got a header error and the quest would no longer open.
I then placed it in a separate folder and opened a old back up to continue working with ZC and sent a zipped copy to Jman, it opened for him, and so I tried it again and then it opened for me.
That makes me believe that it somehow messed with the engine and wouldn't allow that quest to open until another was opened and somehow somewhere reset my engine to allow that quest to open again, it was on reopening it that I started seeing the black square, it didn't do that beforehand.
The order of things here was this, I made the screen, added the guy and string to a dupe screen, saved it, tested it in the player, went back in and did the color thing for 8 bit, (bug) reported on the other thread, saved, closed, and then got the header error (reported on another thread) trying to reopen it.
somehow these events are tied together
EDIT
ok EDIT...
This the darknut bug seems to have been caused by opening my header error quest in 1154 and moving it back to the 1099, I see many changes have been made to the enemy editor.
the ama guy problem is also not present in the 1154 that I reported with the 1099.
so I guess I've just been forced to upgrade against my wishes.
let's not forget the header error guys, that sent me down this all day long path of frenzied hair pulling ;O)
so we are back then maybe to the 8 bit color thing that may have caused my header error