have you tried delay the ribbon emitter ever so slightly? might stop that attaching to old source issue. I’d have to test it, but that’s what I’d try. As for the jumping, does it look like it skips the sprite that frame? could be particle count, could be the loop resetting… um. I’d try forcing the emitter to loop super consistently instead of just emitting at a rate. That might work, but w/o testing I can’t say for sure. Can you post images of the jumping?