I assume you mean versions 3.4.2 and 3.5.0? (Don't know what 4.3.3 may mean). Have you ever opened this room in a different editor (not the one you are usually working in)?
For information, "Block 6" stores additional room backgrounds.
Can you send me this room (*.crm) file to see what is wrong there?
Hey,
sorry yeah, I meant 3.4.2(.1?) and 3.5.0 of course...I also tried 3.4.3, the latest stable release. No dice.
I'm pretty careful when switching AGS versions. Pretty sure I didn't open it in any other version directly (I make a backup and open that when I try out a newer AGS). I've been sticking to 3.4.2.1 for quite a while now because the newer alphas I tried didn't play nice with the dialogue designer plugin.
I went back yesterday and replaced the room files with backups until I found one that still worked. Luckily I didn't touch the room much, so there won't be a lot of work to be redone.
I guess the room file(s) must have gotten corrupted "somehow"?...No Idea. Kinda scrary. Guess I'll do my snapshots/backups more frequently from now on.
By the way...if I switch from 3.4.2.1 to the latest stable 3.4.3, would that be likely cause any problems? Since 3.4.2.1 is actually an early alpha which is now called 3.5.0, right?

Should I rather stick with the alpha releases?
Thanks again