Here’s your video in a player where we can slow it down:
I’m not sure what to make of it honestly. At fast speeds like this the pick strokes naturally get smaller, but I can’t tell if the upstrokes would be escaping. Is it possible to back off the tempo slightly to allow for larger strokes, and try intentionally doing rest strokes so that your pick always gently contacts the “b” string on all downstrokes.
Also, there’s not enough room to really see what causes this but keep your eye on this area:
That “space” between your arm and the guitar is changing and this could be from your forearm twisting. If so, cool. The forearm rotating is definitely a motion that would create USX in this slightly gypsy setup.
OR it could mean that the elbow is driving the motion. If that’s the case, There’s not much we can do to get this motion into USX as the elbow is a simple hinge that drives the pick away from the body on downstrokes. There’s of course nothing wrong with that, but it’s DSX and not USX, so trying to use a motion like this for EJ is just not going to work. Again, I’m not saying that’s what’s happening here. I’m just saying, if the elbow is driving the motion, that’s where we are.
In any case, I’d highly recommend uploading these videos (and the ones I’d asked for above) to the platform (i.e. non-forum) and get Troy or Tommo to take a look at this. I’m an amateur, they are pros. I sometimes see stuff that’s not there and we don’t want you chasing wild geese. They’ll be able to tell you exactly what’s going on.
Lastly, if you haven’t already seen this, do check out Adam’s (RIP) amazing video on how to play EJ phrases with a DSX motion. Chances are you’d have that stuff whipped into shape in a matter of hours, days at the worst case. It may be more of a shortcut than trying USX.