Any door that has special custom animation (in other words, doors that don't go up and down) are totally missing and may cause Vavoom to crash.

I can't reproduce this problem, could you please post a more clear example of this problem? (i.e. where does it occurs for you?), thanks!

Well, the same is occuring in r4129, just to update you. In map27, you can head left, into some large door you can open... heading into it, there's an animated door you can see the "missing" effects of when you open it. Pic: [img:13tpsm2w]http://img705.imageshack.us/img705/3452/strifedoor1.th.png[/img:13tpsm2w] In map17, these doors you can find everywhere are missing their transitions. Pic: [img:13tpsm2w]http://img694.imageshack.us/img694/6793/strifedoor2.th.png[/img:13tpsm2w] In map29, the double doors animate when opening... in this case, the doors go "missing" when one of them are opened. Pic: [img:13tpsm2w]http://img408.imageshack.us/img408/7885/strifedoor4.th.png[/img:13tpsm2w] In map07, the door that leads into a fake programmer's lair doesn't animate. Pic: [img:13tpsm2w]http://img682.imageshack.us/img682/7176/strifedoor3.th.png[/img:13tpsm2w] A better test would be from the demo.wad from SVStrife that can be found here: <!-- m --><a class="postlink" href="http://www.doomworld.com/idgames/?id=14145">http://www.doomworld.com/idgames/?id=14145</a><!-- m --> It has an area with all the various animated doors that you can test against... with one of the doors causing Vavoom to crash. It's the best place to start.

Found the cause of the crashes, but the missing transitions are still a mystery... I can't find the cause of they being missing...

Fixed.