At the abandoned outpost quest of the Silver Seed add-on you come into room that will close off both exits on crossing it with energy fields. In the original the poison traps and explosion shooters in the corners will activate. In Exult only the energy field comes up. Possibly never implemented since it isn't working with Exult 1.2 either.
Attached a savegame of Exult and the original.
Exult save - go south
Original save
Next snapshot will have this working. Remember, you asked for it...
I'm reopening it. Compared to the original, this trap cannot be survived anymore.
The explosion shooters should only shoot once and not nonstop.
Should be fixed in latest SVN. I am leaving this as "pending-fixed" instead of "closed-fixed" awaiting feedback for things broken by this fix.
Finished my SI play through and all seems fine - so I'm labeling it fixed