No fuel flow from Aft Tank

[milesk]

When I fly, I usually try to use the fuel in my Aft tank first, however, every time I switch to it, my engine quits. According to my guages, both my wing tanks and my fuselage tank are more than half full. This situation exists for dcs world 1.2 and for DCS 1.5. Any suggestions?

[Buzzles]

You're going to need to post a track.

 

I've not flown one with more than 67%* fuel for quite a while, but it worked last time I did.

 

(*67% is the magic number in the ME/Rearm menu that is full wing tanks and 0 in the aft)