Guild Wars 2

Hey all.
I noticed an issue with all the pets i use (Bristleback, Wolf, Smokescale, Drakehound)
Its the first time today on all of them except wolf, i have had this issue before as well.
Whenever i use a F2 skill, its cooldown is incresed and its indicating blue instead of white numbers, like my pet is chilled. but it isnt. i double checked it a couple of times, but my pet wasnt chilled when it casted F2 and it wasnt after the cast.
Also, no attacks that could increase a cooldown by interrupting it where anywhere close. even if i just used them without enemies near me, it acted like my pet was chilled
Relogging, swapping pets, renaming them, everything i tried didnt work so far.
I counted it as well, its not just a blue Cooldown-timer, its recharge time is higher and its acting like the pets are chilled, while they cleary are not, neither while casting, nor afterwards.
any tips you might have?

Sick Em can interrupt your pet skills. Are you using it when they are ’’channeling’’ their F2 ?