Are you using an encrypted browser like DuckDuckGo? I get the same problem with DuckDuck, I think its just preventing downloads to your computer without your permission.
auto iso will give you nightmares in post, stick to manual everything. d log m adds compression to highlights and expands shadows so has the potential to produce a better finished job, but from personal experience, working with log in post is not...
Why go looking for trouble? I am a risk averse drone pilot and I cherish even my Mavic mini 4pro let alone my Mavic3.
I like freedom from police and lawyers and against fines too much.
That footage is not worth risking it all for me.
Dale