Look like this video

Probably had moisture / dust on the bottom sensors, give them a wipe. I always check them as part of pre-flight check.

I think it’s low sun from backward and not ideal clear sensors.

Mishanki Posted at 2018-3-8 03:38
I think it’s low sun from backward and not ideal clear sensors.

Did you try to reboot the drone and wait for a few minutes and fly it again. Please keep us updated if the problem remains. Thanks for your support.

Problem stay. Random height and some time with auto landing. Clear bottom sensors. Sunny day. Above snow territory.  I'm try two batteries with same problem.
http://www.phantomhelp.com/LogViewer/ETO1AMXM94IR9CHDU155/ - log

I have the same problem, is there a fix?

Sunny day with snow - it’s problem for me.

It's happened on my last 2 flights at different locations on different days,  no snow. one flight at sunset above grass oval and one at midday above trees.

is there anything apart from cleaning the sensors that i can try?

I continue to have this same problem - the altitude will fluctuation between the real value and something < 10ft -- the sensors are clean and I've tried this in a variety of terrain.  Is there a problem with my hardware?

mattbillenstein Posted at 2018-5-7 09:57
I continue to have this same problem - the altitude will fluctuation between the real value and something < 10ft -- the sensors are clean and I've tried this in a variety of terrain.  Is there a problem with my hardware?

Actually, looks like my VPS altitude is just bad?

http://www.phantomhelp.com/LogViewer/LTVTHN3FG5PJGCO512CX/

Supposedly snow can mess with the optical sensors. Although I flew mine over snow a whole bunch of times this winter, and didn't experience any problems. Strange!