I have a question.

When I have locks on the weapon, especially, when they are not at full power, I could have problems when trying to reactivate them.

Sometimes, they work just when "some power leaves the weapon".
Sometimes, I could activate locks again 1 or 2 minutes real time before they are expired.
And more than often, it said "You should wait <some time> before using lock again".

Is it bug or "feature"?