Of course fan can't cool down the coolant if there is air in the radiator. That is the main problem there.
Did uou not pay attention on how the bleeding was don there?
@Sabbas, do open the breathers as I mentioned above and do tell if air comes out. If air comes out and you let it all come out, that will be the fix.
And I did a video opening the radiator's cap soon after stopping the engine. Was about 1-2 minutes after turning the engine off, but it's the same just immediately after turning the engine off. Needle on temp gauge was at the middle, I showed that at the end.
No coolant comes out.