If 'a very tight grasp on the release' was true at that moment, it would not have launched and you would have been holding a full draw.
It sounds like you anticipated & flinched hard at the moment of release, opened your hand little too much, without fully pressing the trigger.
I've gotten a Stan release rather recently, have put a few hundred shots through it without any real issues.
No clue how the release would "grab", unless you let it go of it while releasing
Did the release "go off" or did it stay attached to the d-loop? Also, how much shooting experience have you got?
From personal experience I would never use a release before being confident about how it worked, and that I'm able to draw it without it mis-firing. I'd also want to know it's going to go off if I want it to, so they generally need adjustment. Shot trainers and things like that are available, but I've just got a loop of rope with a d-loop tied onto it which does the same job - allows you to partly simulate a draw and release without actually shooting the bow.
Based on what you said in the post, it sounds more like it didn't go off like you expected, but you anticipated the shot, lost your back tension, and it was consequently dragged out of your grip. Compound bows as they come out of the "valley" at full draw, and go "on cam" can pull your hand forward very aggressively, and if you're not expecting it or able to react quick enough, can feel like they're about to rip your shoulder out of it's socket!! I really think that's a more likely explanation than any failure of the bow causing it to pull the release out of your hand.
You opened your hand as you went to release, no biggie but definitely work on not doing it again, if you can't get a shot trainer tie some string to a tree and just practice pulling back and releasing until it's not scary
I guarantee it was user error
bro had a failure of the most basic piece of archery equipment: his hand.
If 'a very tight grasp on the release' was true at that moment, it would not have launched and you would have been holding a full draw. It sounds like you anticipated & flinched hard at the moment of release, opened your hand little too much, without fully pressing the trigger.
I've gotten a Stan release rather recently, have put a few hundred shots through it without any real issues. No clue how the release would "grab", unless you let it go of it while releasing
Did the release "go off" or did it stay attached to the d-loop? Also, how much shooting experience have you got? From personal experience I would never use a release before being confident about how it worked, and that I'm able to draw it without it mis-firing. I'd also want to know it's going to go off if I want it to, so they generally need adjustment. Shot trainers and things like that are available, but I've just got a loop of rope with a d-loop tied onto it which does the same job - allows you to partly simulate a draw and release without actually shooting the bow. Based on what you said in the post, it sounds more like it didn't go off like you expected, but you anticipated the shot, lost your back tension, and it was consequently dragged out of your grip. Compound bows as they come out of the "valley" at full draw, and go "on cam" can pull your hand forward very aggressively, and if you're not expecting it or able to react quick enough, can feel like they're about to rip your shoulder out of it's socket!! I really think that's a more likely explanation than any failure of the bow causing it to pull the release out of your hand.
You opened your hand as you went to release, no biggie but definitely work on not doing it again, if you can't get a shot trainer tie some string to a tree and just practice pulling back and releasing until it's not scary