Hey, so the problem is self-explanatory: when the player car spawns in pits, it spawns in, say, garage 5, and proper garage door is open, but the pitbox instance loads the one for pitbox 1, not 5. I've double or triple checked, the numbers of pdoor and pitbox are matching, not sure why can this happen.
Yes it was. Strangely, starting pitbox objects from 01, rather 00, solved the problem. (even if pdoors start from 00).