Yesterday we had solex start crashing during flight on 2 seperate systems that have never had issues before. Maybe 4 or 5 solex crashes over an hour and a half of flight time between the two. Neither have been updated recently or really had any changes done hardware or software wise. With the exception today was the first time we used a common wifi network for streaming telemetry data to a laptop, rather than connecting directly to the herelinks hotspot.
QGC was never opened at any point, the crash didn’t cause a safety issue yet (sticks still worked to pilot the drone) but is obviously very concerning and we need to figure out what the cause is. I also saw some odd behavior in solex itself when once during a guided mission it suddenly was reporting the distance from launch was completely wrong for about 30 seconds and then it was suddenly correct again.
We had the app crash both in manual (loiter) flight and in guided mode (commanded from an onboard companion computer).
I also noticed (after the last solex crash and we decided to not fly anymore) the connection seemed unstable while on the ground and nearby. The signal strength Icon in the herelinks notification bar was jumping between full, half, and no signal in quick succession. The herelink settings menu looked to indicate a good connection -65dB or so 16,000kbs uplink bandwidth during this but sometimes looked to freeze for a second or two every now and then. I am not sure how much weight to put on that little icon, maybe it always did that and I didn’t notice?
Both of these drones have done multiple ~1 hour long flights without an issue like this before.
This is a lot to unpack with a lot of variables, I will need to go back out and try several different scenarios to Isolate the problem better.
I will figure out what firmware version they are running when I go back to the lab.