LCS SK19 not firing after first shot.

Looking for some help. I've watched all available videos and can't figure out what's wrong with my LCS SK-19. Issue initially started because I screwed the barrel on too tight and jammed the magazine so it did not rotate. I took apart the gun to clear the magazine following available videos but now my mag won't rotate by itself after firing the first shot and won't fire again. The magazine is not stuck, I can freely rotate it now with the mag lock lever lifted, or when there's not air pressure. When I load air initially I can fire the first shot, when I pull the trigger again but nothing fires. The regulator is full with it's 150psi, and the magazine has pressure keeping it locked. I can open the mag lock lever and move the mag, but it won't rotate on it's own when I fire the one shot I get.

Any thoughts on what else I can try to fix this issue?

Another question, any one know the exact size of the magnet that holds the mag loading lever locked?
 
Is there a device that rotates the mag for the next shot? You might have caused it to jump out of time when the mag was jammed because of the barrel. If I recall there is a mention of this on one of the videos that talks about the LCS SK-19 on You Tube. It's worth doing a little research before needing to return it for service. Your mileage may vary as this is just my 2 cents on the subject.

I just noticed that you have looked at the videos that are available and still looking for solutions. If I run across the vid that addressed the mag malfunction I'll send you a link.
 
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Without watching the entire video again I think this might have the information that you need.


Or maybe this video. You may have already watched them.


I'll keep an eye out for any others.
Thanks, I've watched these multiple times and have followed them closely, I'm thinking there are other parts which are not covered in the video's that's failing. Wondering if anyone else has had this issue that could provide insight or have any suggestions. I've disassembled and reassembled the trigger box, and the pistons following the video above and all that seems to be in order.
 
In the top video at the 14:00 mark he shows placing a card behind the mag to press the piece that rotates the magazine back so it will engage the notches on the magazine. It looks like that part called the hand should rotate the mag as the trigger is pulled. When the trigger is released the hand should return to the resting position ready to rotate the mag for the next shot. Were you able to inspect the hand to make sure that it functions as the trigger is pulled? Can you hear any rattling in the area in front of the trigger indicating that there might be a broken part that is keeping the hand from functioning? If there aren't any broken pieces it might be bound up. Maybe a touch of lube in that area? I'm grasping at straws here.
 
I have the same exact problem after following the Airguns of Arizona seal replacement video:-
1. The gun fires once only when it re-powered .
2. Upon re-powering the mag lever gets stiff and locks the rotation of the magazine ( as it suppose to be).
3. After first shot , the trigger stops working, the mag lever loses power and the magazine can rotate without opening the lever.

I suspect the problem must be some type of alignment with the mag lever , rotation of the magazine and power/air being driven to rotate the magazine .

Did you find a solution? Can anyone assist ?

Thanks in advance