In E2L6 in room with the mini-battlelord near the exit there's is a fire sprite that's rendered too high horizontally. It should be in the bottom of the pit to let you know it's a damaging area.
Savefile: https://www.dropbox.com/transfer/AAAAAJ ... v1XIZB4raw
I can't say this surprises me. One of those EDuke fixes that, according to TerminX: "Since this is Duke3D, I'm sure this change breaks something else.".
Anyone interested in finding out when this started?
Since the RedNukem frontend code is now capable of running Duke I am closing this - as all other bugs inherited from EDuke32. If they get it fixed, fine, but I've come to the point that I prefer to use the more compatible code to play Duke by now, it surely causes less surprises.
I think, long term it should be attempted to consolidate both code bases, of course with compatibility options for the critical differences.