[quote:1d04waug]i never work with this condition
and what is capx?
The capx is your whole project (save as single file)
This is actually a zipped file of your project.
Trigger once: does what you expect
Like if you jump and check if your player is in the air - it will trigger every tick.
But if you check with AND trigger once - your event only gets fired once and so the animation has a chance to go to frame 2.
My way of checking if it get's triggered all the time is to play a small audio file in the e.g. jump condition - now you hear how often the action gets triggered.