Same happening here for me. Again...
I've an VA3M and an OnePlus 6 mobile.
This issue with bluetooth used to happen in the previous update (firmware).
Then they fixed, and now it has returned.
I'm not sure yet if it is related to the firmware (or the other software, last week sensor was updated) or to the garmin connect mobile or even all things together.
So, Former Member and team! Correct it... Again...
And to become even worst, here in Brazil support is the worst we can imagine. We can't, for example, open tickets anymore... Because this, I have posted it inanother thread, maybe Former Member watch it and open a ticket in EUA.
Hervandil