Besides the above "fireball in the wall" bug, which may or may not have originated from the latest version of OAUA, a couple of other things I've noticed:
When any NPC that I've created is in the party, if I use the ^ to incorporate their name into a line of text, the text will have spaces after the name, even tho I didn't add blank spaces after naming the character. For example: I might intend the text to read "Then Ryo, using karate, knocked the ninja out." but it comes out as "Then Ryo , using karate, knocked the ninja out."
I go to check the NPC's name in the editor, and, sure enough, there are blank spaces after the name. So I remove them thru the use of the backspace key, and resave. However, next time I check, the blank spaces have returned.
Likewise, I can remake an NPC into a different class than was the default, but OAUA doesn't save the all the changes. That is, I can select a level in the editor and save, but I go back and the level is blank. I created a couple of samurais, too, who can't use their samurai gear because, in game, they are "wrong class." So, it seems that, even tho the current character screen calls them "samurai," some previous NPC information is refusing to go away.