Spectre bug: Faridun units walk slowly after engaging combat

Faridun spectres for some reason start walking slowly after their first combat.
In vidoes from 0.2 they never started walking in the first place and always run.

Very cool units, I'd like to use them. Fix would be appretiated.

I remember Swordsman and Bladedancer specifically. But majority of Faridun have this issue.