1050 looses all ANT+ connectivity after the sensors go to sleep

Good day all and Happy New Year 

I have an 850 and a 1050. Both have Di2 Garmin HR and power meters connected using ANT+. The issue I see is that if I let the sensors go to sleep after connecting (I.e. at a coffee stop or after setting my bike up for a triathlon) I have no Ant+ data at all. And no matter what I do I can not get the Garmin to connect. Has anyone else seen this? It happens with Asioma Pro Duo’s on my Tri Bike (850 Garmin) and on my road bikes with 4iiii power meters and the same 1050 Garmin head unit.