It was a while back but I'm pretty sure no other skills were affecting my LI.
On a side note the skill description says "when the unit loses 60% of it's size the skill activates" which used to be "when the size of the unit is 40% the skill activates" it's all fine and dandy and the new description is better but... that's 8 troops. The skill activates at when 7 are left now and always did. I never bothered checking the math but I did after this bug. The skill should activate when there are 8 units left not 7
please take a look at it.