I used my new Thunder 5 shooter the other day. I set up per instructions and the first 5 shots went smooth. I reloaded by just putting bumpers back on the launcher and the launcher seemed to skip a couple shots....did not launch bumper but rotated to next one. This happened twice. I shut down the machine and restarted per instructions again and again it skipped 2 bumpers before launching. Any thoughts?
Thanks in advance.