M52-2 problem

[jwax]

New to the 52-2, and was shooting great with both factory and my reloads. Suddenly, fired brass doesn't eject, and new round from the magazine jams up against the back of the fired round in the chamber.
However, if I load only one round, it fires and leaves the brass in the chamber, and the slide locked back. Cycling the slide manually ejects that brass normally.
Is this an extractor problem, ejector, or other?
A round plops in and out of the chamber ok, so leading isn't the issue- the chamber is clean.
Thanks for any insight!
John

 

[jwax]

Many thanks to dunk52 for advice on extractor replacement! Fixed!
Numrich replacement did the job! Must add though- the Numrich replacement needs to have the hole enlarged ever so slightly; just a few thousandths, otherwise the pin does not fit.