In this, I'm not so sure where these "lines" came from. I'm not sure if it's just the sun, SD card or the camera itself. The so-called "lines" I mention are just in the first couple of seconds from the video.

Prop shadows...nothing to worry about.

Hi. Thank you for the inquiry. Is this issue happening on all of the footages that you are taking? I can see multiple powerlines in the area. It could be that the lines we see at the beginning of the footage can be caused by signal interference.

Yes, that's definitely prop shadows. Here are some things you can do to work around that issue:

1) Point your Mavic away from the sun.
2) Use a lens hood (to shield the camera from the sun).
3) Use an ND filter to allow the shutter speed to be slowed down.

Nothing to worry about. Reflections from the props.

I agree with Dingo, msinger and Woe that  it is prop shadow from the sun on the left{:4_174

ok thank you all!! so happy to hear that it's just the props thank you so much!! I'm glad that it's not something wrong with the camera or something else

Yup for sure prop shadows.  Nothing to worry about.