Auto-allocation of armor for fixed-wing support craft loses armor points

[assaultdoor]

Using MML 0.47.4 on OS X with Java build 1.8.0_51-b16, when I auto-allocate armor on fixed-wing support vehicle, roughly 20% of the armor vanishes. For example, if I've got one ton of Tech Rating D armor (31 points), the Auto-Allocate Armor button puts 9 in Front, 6 on each wing, and 4 aft, for a total of 25 points. All 31 points are listed as allocated.

I've only seen this happen with fixed-wing units.