By "spin" the round, are you saying that the hammer strikes the round once without firing, but by rotating in chamber and hitting it a second time, then it fires?
One of three things, the ammo or the main spring or (as stated above, the .22 was dry-fired and) parts are deformed.
Most semi-auto .22s require a HV round to work properly. Care must be taken on which HV ammo you get. CCI does not recommend Stingers in those that the chamber is not cut to the ANSI specs. And most European .22 are not to American National Standards Institute specs.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
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Former President of the ECPT (Eifel Combat Pistol Team)