Shotgun - I am having issues with my Mossberg 535 pump. The firing wasn't striking the shell casing?

... hard enough so it would misfire the first 2 rounds so I pulled it apart and cleaned it. Upon cleaning it I think I may have put something in wron

... hard enough so it would misfire the first 2 rounds so I pulled it apart and cleaned it. Upon cleaning it I think I may have put something in wrong and now the slide release will not release after the first shot. I have to push the slide release lever to chamber another round. Does anyone know what I might have done to cause it to do this?

or:... hard enough so it would misfire the first 2 rounds so I pulled it apart and cleaned it. Upon cleaning it I think I may have put something in wrong and now the slide release will not release after the first shot. I have to push the slide release lever to chamber another round. Does anyone know what I might have done to cause it to do this?

Tags:pump,striking,firing,