mcs5225 (1/4/2013)
I have a Rem 1187 sportsman supermag and I think I might have had the same problem this past season. I popped the two pins out to drop the trigger assembly out and I looked inside (didn't see anything) and after I put the assembly back in with the pins it began cycling correctly. I did nothing to it and it has worked fine since then. It might have been a fluke but try dropping the trigger group out and putting it back in. Maybe something is jammed and just needs loosened.
I love it when it works out that way....