Since the rounds pass the "plunk" test in the chamber, but will not feed from the magazine, I'm going with it being an extractor issue. If the extractor has too much tension or is not rotating and allowing the case rim to slip under the extractor hook, you will get this sort of stoppage.

Another cause could be a rough breech face. If there is enough roughness, friction between the case head and breech face surface can cause a failure to feed.

As for the magazines pictured, I suspect the middle one is a ProMag, based on the way the magazine body was made and that weird, overly long base plate. ProMags are notorious for malfunctions. The stainless magazine is a 9-round magazine for the 3904/3906, but they work just fine in the 39 and x39 pistols.

__________________
VCDL, GOA, NRA