In mast roller issues

[dMAC]

I have a 2010 Jeanneau 53 with an in-mast roller. Lately I have been having issues when trying to bring the sail out with my out haul where the sail will jam up in the vertical slot in the mast. I have to work it back in and out, sometimes pulling the sail out by hand. I have tried tighten up the main halyard as tight as I can make it but that didn't seem to help. I also try in hauling the sail tight when I bring it in, but that doesn't always help. Any suggestions? Comments as to the benefits and negatives of in mast rollers or other systems can be a topic for other threads, just constructive suggestions are appreciated, Thanks