HRM Tri connection problems...

Good morning all,

A rather dull pair of questions i'm afraid, but just wondered if anyone else had the same problems:

i) Can't connect to HRM Tri: i have found recently my Fenix 5 Plus disconnects from my HTM Tri between activities, and i can only seem to get it to connect once i take the battery out, replace it, remove from the Fenix and 'reinstall' it. It then works fine for the subsequent activity, but when i come to the next one (usually a day later) it can't connect. And i have to repeat the process. It's probably a dud HRM Tri as it's 2yrs old, but given it works intermittently (it's surely either alive or dead) i wondered if it might be some Fenix 5 bug....? It's not the battery for sure, as i've been through 3 of them in quick succession. Anyone else found this, and potentially solved it? 

ii) Average Running Power field disappearing: does anyone find that for every, say, 10-15 activities, the Average Running Power field disappears to be replaced with something nondescript such as activity time? I need to remember to check before each activity it's still there, as if it isn't, not only do i not see it 'live' when running, it doesn't record it for viewing afterwards. It's a bit annoying. Anyone notice anything similar?

Thank you for any thoughts or help.