OK , now these offer a Different story, So maybe not the lens reflection , but these picture are so poor quality , there coming in the size of a postage Stamp , can you post a larger picture ?
I do see now where your thinking Alien , lets...
Really looks like the Lens Reflection
There’s a pattern inside the circle that resembles a reflection or lens artifact — almost like a geometric or triangular pattern.
The streak on the left side looks like light flare or reflection, possibly...
The Mavic 3 might be a good choice .
What is it exactly that your going to be carrying under the drone. ?
Here is mavic 2 carrying a life Vest weighing close to a pound.
with a drop system .
Start at 1: 36
Phatromrain.org
Gear to Fly...
If you only have 1 light and you want to get the best bang for your efforts , I recommend you use a compression band and place the Light on a tilt so you can see it from the ground as well as from the top, This give you so much more coverage...