Yeppers - if you have a newer easy open frame and the barrel is older with the one-piece locking bolts, that's your problem most likely. TC used to just send you a split set for a call to them, but as with everything else with them that "service with a smile" thing is no more. Luckily I rat holed a supply of them for my needs many years ago (sorry, no they are not for sale), so I can just do the deed myself. You'll have to send them the barrel to have the split bolts installed. If that is in fact what your problem is, they won't need your frame (they don't match the bolts to it anyway).
HTH
Ladobe