ok, so this is a shot in the dark, but maybe someone can answer some of my questions if not all, which may well be enough.
1. how many trigger_once entities can you have in a close proximity, 16 units either side too close?
2. triggering two or more sets of identical entities, but with different values/names/keys/etc (ie: trigger_once > player_weaponstrip | trigger_once > game_playerequip | teleport) thatis the combination in order, with one person it works a treat, but with any more than 1 set of these entities being activated causes an error (no description, just an error)
the names are all numerical, and range from 1 - 16, could the problem be having a '1' and also having a '13' (the 1 being the problem); although i doubt this is the cause, for several reasons.
could the teleport be the cause, somehow, with two people at the same time. i think it is around the strip to give stages that the error is occuring.
any thoughts?