FBO lockout plate

How’s it going guys, I recently purchased a FBO lockout for my distributor. I installed the plate along with new springs included with the kit, and timing is all in at 34*. When I take the car for a ride everything is fine, all of a sudden it pings like crazy, stuck at like 30*. I pulled it and the weights were stuck open, pulled it apart and everything looked fine. I put it back together tested it again and it stuck again, same thing weights stuck. What could be causing this? Everything I have read about these plates say they don’t stick timing but I am having that problem. If anyone can point me in the right direction it would be appreciated.

Motor is a 340 if needed and I believe a mopar performance distributor

Thank you
Joe