Not sure but I think I got it now. When I took the plate off the top 2 to 3 of bellies would come out and I would use my fingers to push them back in. I did another batch of them and made sure I didn't touch them at all and they are welded good. Saying this I have been doing this the whole time I have been making them and never happened before but I will see........Thank everyone for the ideas and suggestion...