An Air Base at Priority 1 should receive Ammo/Fuel of up to 50%, at least there are no other rules stated this would not be the case/would be different for Air Bases I know off.
Three things are off.
- During your own Logistics, the Fuel is refilled properly (to ~50-60%) but the Ammo is refilled to 100%+.
- The Fuel is logged properly in the Supply window of the Air Base, but Ammo is completely forgotten about to be logged.
- During your Air Phase it seems each day is another Logistics circle. So at the end after Air Phase at Prio 1 with massive missions going on (see the traveled percentages - it's a short mission setup near Leningrad) you end with 100%+ of Ammo/Fuel.