FN Browning 1910/22 jamming on first round not ejecting properly

[old tanker]

You say no malfunction on the last round? If you load the magazine with just one round it will fire and eject normally? As there were versions of the 1922 built both with and without a magazine safety or disconnect, can it be fired without a magazine? Does the malfunction only occur when there is a "second"round in the magazine? Since the gun is blowback operated, a case will often come out of the chamber without the extractor extracting it. The extractor does need to hold part of the rim so the striker/ejector has something to work against. What happens if you shoot it sideways, "gangsta" style so the ejection port faces down?