@Nelson-Diogo I have the same issue with the polar verity sense, and some other person here on this forum had this problem with the Coros sensor.
I emailed Suunto and after initially giving generic responses, they admitted that it’s an issue with the Suunto Run and said they’ll look into it. It was a couple of months ago. I think anyone getting these issues should mail them too. Maybe it’ll motivate their teem to focus on fixing core functionality bugs in updates, rather then the aesthetic gimmicks they are currently pushing in updates (ice too have, but imho making external hr sensors work is a bit more important).