Posting this here to maybe the dev's see it. About 2:30 hours into my ride today I started getting random "XYZ connected" notifications cycle across the screen. Radar connected, speed sensor connected, HRM connected, di2 connected, light network formed, etc.
Never got any disconnect warnings, just "connected" notifications. Never lost any of my data on screen, or at least no date loss that I caught.
Looking over the ride on Garmin Connect I don't see any major drops in the data. But I did notice to very short HRM drops sub 15 seconds, only occurred 2 times.
Only my 3rd ride with the new unit. First 2 rides were sub 2 hour rides and had no issues. All sensors minus the di2 are Garmin if that helps any diag.