Chiappa Firearms M1-22 short cycling

Its now been like 5 years since Id purchased a used Chiappa M1-22 carbine.
First time out it functioned perfictly (above freezing temps) the few following trips it had some issues with gummy parts from old lube.
Through cleaning and another outting and it was basicly a magazine fed single shot.
I looked again and tightened up a part that had backed out (recoil spring guide rod)

Make sure there is no gap between the hex portion of guide and where it threads into the op-rod.
The 3 threads out was enuf to cause short cycling and not fully resetting the hammer on firing.