After some more playtesting, a few more oddities I noticed, this time pertaining to ship AI
Fighters: I've only seen this once, but I've had fighters (3 bomber wings from the same carrier) inexplictly stop functioning properly, and instead all tighly circling the exact same spot on the battlefield, right in the midst of enemy ships. Sadly I can't tell you much more than this.
Medusa Destroyer: Consistently refuses to aim, and thus fire its 2 frontal hardpoints, which really hampers its combat potential (Example image in spoiler). My best guess is that it is caused by prioritising getting 3 of the small energies on target, over the frontal hardpoints.
Edit: The new XP threshold changes caused me to jump from level 12 to 15. However, despite gaining 2 skillpoints from this, I only gained 1 story point.