That's weird, I had something similar happen but not in the 262, nor in the join.  But, something equally odd.
I was in a Panzer, shelling a city we were going to capture.  I was straffed, lost a track, then another guy dove in and finsihed me off.  Can't recall his name but he did a good job.
2 bases away (and several minutes later, after visting the potty), I grab a P-38, hit the runway, hear pings and die.  No cons anywhere near.  WTF?
Well, maybe I can't see the con, but its the same guy who is 2 sectors away getting the credit for kill?
I try from another base, grab a Lanc and hit the runway.  Ping ping ping and explode.  Same guy gets kill.  Huh?
How can the same guy, in 3 seperate areas, get me?
I re-logged, but prior to doing so, my net status was perfect.