Different art gives an IE?, Something I discovered. Options

[Devastator]

Some may know this, and some may not.
I discovered this when I played the VERY old TS Ultima Mod.

If anyone here has played it, (I know ORCACommander/Bloodreign has) you probably noticed that Banshee, Orca Fighter, and Orca Bomber have different art/images, but same voxel name. So I created an aircraft, and gave it Image=ORCAB. When I turned on TS, I'd build the aircraft. As it rose, I got an IE.

Point is:It was reading the new art, and not Westwood's.
It wasn't the mod, because I took Ultima Mod's orcab.vxl and .hva and put it in my own mix. Still got the IE. But then I tested it on a different aircraft with no new image. (Nighthawk (EMP))

As a sidenote:I discovered this year agos.