Tried it, changed batteries, still same. Read on the forum this might be a side handle issue. I will have to downgrade to 6.0 and then update it again step by step

That's a pretty low start point for everything you mentioned, but since you are (i guess) beginning, the best thing you can buy is a used sony A7s.
Perfect and THE BEST low light camera, nice battery time, 4k, amazing LOG(also somewhat arguably difficult to work with), high fps, good build, use adapter for any lens you want. Overall a very good camera and probably the best you can buy not having to worry about accessories

It does, as mentioned, due to shutter speed and its effects. Also, this is not something to look over so the choice must be motivated. 25fps or 50 fps, they both have their own "use" and that's the basic stuff for cinematography

Very nice campaign video, comparing to others. What did you shoot on? Also, maybe a little more specificity on what kind of pro gear you are renting and for how long, to be clearer on the budgeting. Overall, very good.

p.s.: that's a lot of actors for a tracking shot, would love to hear what's the scene about

In another bts the spotlight is the only source of light when everything shuts down and they have very hard shadows. But when everything is lit, his face is very warm with top lighting, but way softer although casting a lot of shadows, just a little smoother edges. So the light is definitely coming from a soft box above. But Wouldn't a soft box need to be tungsten?

yes because they are dimmed down at that moment. I'm asking a different question. Why the soft box is daylight? What is it for there? Because the lighting overall seems very warm even on his face when the restaurant light are still up.