Entire Ant+ sensor stack dropped during navigated ride

I’ve had my 530 for six months, and haven’t lost any sensors before, but the first time I used it for navigation, twice in 90 mins I lost the entire ANT+ sensor stack for about 10 seconds.

it dropped

HRM, power meter, Garmin Radar, Di2 gears, speed sensors.

I’m on the latest full firmware for everything, I thought that this had been fixed? Anyone else?