The item/weapon selection in between waves is super clunky, I tried to swap weapons for the scout ship, so I had to delete my previous weapons, but even though the new was of the same category (laser beam, which matched the turret requirements), as soon as I selected the laser beam disappeared, and I was left without a weapon on my ship. Mind you this is the scout ship, which only has one weapon hardpoint. Also sometimes I could choose multiple rewards instead of just 1, not sure why?