Question about obstacle alerts

[rawman001]

I was practicing with my fairly new Mavic 4 Pro. It was afternoon and I was close to around 300' above myself.. I got an alert that something was near the drone (lefthand side). I thought maybe a bird had flown by and I missed it so I brought it down and inspected everything and did not see anything wrong. I launched again and was hovering and saw the alert again. It wasn't a constant alert, just popped up every once in a while I was looking right at the drone and didn't see anything anywhere near it. I checked the left view and could see the props and the side of the aircraft but couldn't see anything else. I checked my Airdata logs and apparently it doesn't show proximity alerts. The alerts were always on the left side of the aircraft and the sun was to the West. When I rotated the aircraft I didn't see any alerts but since they were inconsistent I'm not sure if that was conclusive. Only thought I had was that the position of the sun was causing a shadow of a portion of the aircraft to hit the vision sensor. Is that a possibility? Any other suggestions?

 

[Dan'sUavTech]

I was practicing with my fairly new Mavic 4 Pro. It was afternoon and I was close to around 300' above myself.. I got an alert that something was near the drone (lefthand side). I thought maybe a bird had flown by and I missed it so I brought it down and inspected everything and did not see anything wrong. I launched again and was hovering and saw the alert again. It wasn't a constant alert, just popped up every once in a while I was looking right at the drone and didn't see anything anywhere near it. I checked the left view and could see the props and the side of the aircraft but couldn't see anything else. I checked my Airdata logs and apparently it doesn't show proximity alerts. The alerts were always on the left side of the aircraft and the sun was to the West. When I rotated the aircraft I didn't see any alerts but since they were inconsistent I'm not sure if that was conclusive. Only thought I had was that the position of the sun was causing a shadow of a portion of the aircraft to hit the vision sensor. Is that a possibility? Any other suggestions?

Maybe it is a possibility. Also, having dirt on the sensors could cause this.

 

[rawman001]

Maybe it is a possibility. Also, having dirt on the sensors could cause this.

Thanks! I did check and didn't see anything on the sensors.