There does seem to be a little space between the hammer and the rebound, although less so when releasing double action.
I'll let the photos do the talking here.
First one is with the trigger held at the point where the hammer releases.
Second is with the trigger all the way back.
Third is contact on with the trigger returning and the rebound slide moving forward.
This problem only showed up after its third trip to the range.
Only after the failures to fire did I open the sideplate. So whatever changed is probably subtle