The same reason your 163 didn't show up on dar bar until I could hear the engine at 34k feet.
"look at me I am making a derogatory remark to the OP"
Last night went to a sector that had a 1 con bar in it. I was cruising at 15k and came across 8 contacts that were at 25k.After a minute of me flying underneath them, the sectors bar finally moved up to where it should be, but by this time they were already 3/4 the way across the sector. I know the bars are on a fairly slow refresh, but that seems a bit excessive...
Is this common for the original poster to film, exit game, view film, re-enter arena, and go after cons he couldn't find on his own but rather was able to find by viewing the film?sounds very gamey to me.
darbar lag is 10mins IIRC