COP system with secondary

Here’s a capture of a misfire event, I didn’t have time to current ramp it and can’t capture primary voltage, but I think this is enough to call a bad coil. What’s your thought?

I’ve ruled out engine mechanical.

This coil was shielded so I used a capacitive pickup on a wire.

I didn’t scope the command because you can see it tried to fire.

Shorted secondary is my first thought. What YMM is it?

4 cyl engine, dead miss? Make sure the plug's electrodes are not shorted....

I think we need more info on vehicle, engine type and ignition style and RPM the capture was taken at ---- sparks look awful close together for a COP, if it was a 4 cylinder distributer ignition I would go straight to a plug wire or cap or spark plug.

It’s a 2005 Chevrolet Avalanche, 8 cyl not sure of displacement but I know they did a swap for the last one locking up. I go back tomorrow so I didn’t get to get my current ramps. It is a coil near plug on this system. I actually have similar events happening on at least one other cylinder. What is getting me is not able to get primary voltage. I was thinking shorted secondary but it’s happening on more than one coil. Fuel trims look normal bank to bank.

The symptom is a slight miss when engine is at operating temp. The capture is at idle. Maybe 500 to 550 rpms