New to II but have loved all the civ games prior to... on 1.80e

BUG....
I assemble a fleet, try to auto-pilot past their movement x2 speed=6/6 for ex: try to move 12 or more, fleet doesnt move and shows 6/0.
Disband the fleet, all ships now have 12/6 movement and WILL move 12 spaces.
re-assemble fleet, do again. In a pinch you can DOUBLE your ships speeds.

just found another, still testing, if you move partial, say 8 spaces. get a 0/4 i think,
I swear I moved the ships, may have free ships... still testing when I got a min..