Brakes temperature during cruise won't cool down

[Vasilios Grekousis]

Hello FSLabs team!

I have noticed something long time ago that took my attention but I am creating a topic about it today
The brake temperature remains the same even when I have reached my destination.
Shouldn't the brake temperature cool down a lot during these cold enroute cruise altitudes?

My brake temperatures increased quite a lot during taxi due to frequent braking (I am applying brake via a controller button, probably that why). 
I used brake fans and waited some time before taking off. I departed when brakes reached around 60C, 60C, 65C, 60C.
Now at FL340, and the indicated brake temperatures are the same, didn't cool down naturally.
Is this normal? 

Thanks in advance!