Yes, of course. It clicks in place and is unable to rotate yet sometimes it won't turn when trigger is pulled. Good to hear about the turnaround time.
I'm calling tomorrow. Will keep you updated. Thanks to all who replied.
If the cylinder is locked in the correct place (as you say), then the hand is not engaging the ratchet star. Two things come to mind: 1) the trigger is not rebounding to the full forward position. 2) The hand is not returning to the forward position in the shell plate window.
For #1, try pushing the trigger forward to see if the hand then catches and rotates the cylinder on the subsequent pull. If it does, the problem is likely the rebound slide. Since it works most of the time (?), my guess is that the rebound slide needs a little polishing. You can do this by disassembly OR by dry firing a thousand or so times. If dry fire worries you, put a cleaning path between the hammer and frame if the hammer is exposed. Be sure to push the trigger fully forward each time you dry fire the revolver. Dry firing doesn't bother me and all of my revolvers, except the newest, have 10,000+ firing cycles on them. Dry firing will also polish your trigger stroke.
#2, The hand is mounted by a pivot pin to the trigger. It has a spring that holds it forward in the window. So there could be an issue with the hand not pivoting smoothly on the trigger (burr)
or there could be an issue with the spring
or the hand-to-window fit could be tight. Again a few thousand cycles will help smooth any action irregularities that may exist. If it's the spring, it has to come apart.