Hmmm. I've seen this as well but to be honest I figured it was a feature - seeing how my sovereign is a "superior" being I figured he could in some case know where the enemy is gonna wind up. 
For me it was consistent in that if I can see enemies target location once then I keep seeing it (when I select it) as long as its alive. However, I didn't see it on all enemies, about every other one had it.
