The teeth in the plate closest to the engine are not engaging the center hub, springs misaligned, or possibly the hub that the spring bolts screw into is cracked.
I have seen a few people, myself included, install billet clutch plates and have one of the springs not sit correctly. You will see the lip poking out of the plate a little bit. A member of this forum had someone put a clutch plate in his bike, he came to me with similar issues, once I popped the cover off it was right there, spring not seated.
The first time I totally took my clutch apart to do the extra plate mod, I messed up and didn't engage the steel to the inner hub right. Couldn't tell you what it sounded like, my clutch lever felt all out of whack and when I took it back apart that's what I figured out.
Sent from my SAMSUNG-SM-G935A using Tapatalk