Heart rate monitor intermittently failing to connect since 21.18 software update

Since my Edge Explore 2 updated with the 21.18 update. My heart rate monitor (Garmin Forerunner 245) is intermittently failing to connect.

It'll work to begin with, after switching on my computer, but then if I stop and pause the ride, it just stops connecting to my watch. Restarting my computer sometimes fixes it, but not always.

Any suggestions of a fix or a way to downgrade? This is really annoying.

Thanks,

Dom