Good day to all and thank you for the interest.
My usual field is a grass field , not concrete , due to the bright sun i took the video this way .
The behavior is the same , except that after 20 seconds of press hold release after vibration , the rpm drop and solo thinks it is flying . If i press hold Fly again it goes into landing mode.
I agree with what you said on several occasions i have encountered magnetic interference.
I will work on getting a video with 10+ sat ,
Grass field warnings: The only accident i have had was on take off on a grassy field one leg seemed to be tangled and solo reacted violently and ended up with a flip over . only one prop damaged.
i feel more comfortable in manual landing and take off