Stating the "tons" of people are having problems because of a specific problem and basing that statement on Youtube comments is just a notch or two above a guess.
If even one of the eight propeller blades fails to extend, the drone will not take...
I come from a science background and prefer to work with evidence-based facts rather than running off with guesses that are most likely to be inaccurate.
Would you like your doctor or mechanic to just make assumptions without facts before going...
Well, I have to ask, what do you think would happen to me if I were flying my DJI Mini toy and I hit a power line and it fell to the ground and on the way down, it struck a child sending him to the hospital?