Hi Andrew,
in MAP06 there are two lines of type 117 (DR Open Door /fast) that will immediately crash Chocolate Doom is activated, because they are missing a tag and are 1-sided, i.e. they have no sector on their backside. These lines are linedef #24 and #25, inside the red door.
Please add a check and emit a warning for this.
Boom already has a check for this in EV_VerticalDoor().
Thanks,
Fabian
I agree this should be checked. On the TODO.
OK there is now a check for this situation.
BTW you had me a bit worried when mentioning tags, but I double checked and EV_VerticalDoor() never checks or uses the line's tag.