Brushed test quad going crazy

So the flight controller works well but it’s something about the frame that makes my FC want to kill me…


Anyone know why this is happening?

Video is too short to exactly tell what’s going on.

Maybe:


Or something like this (the cause was seemingly a malfunctioning motor):

I’ll try replacing the motors, but I put them in the correct spots. And is it a problem that the FC is slightly off center, it’s around 1 inch off.

I’ve replaced the frame to the one with motor tilt. It still spins but it’s better, but it is practically uncontrollable. Anyone k ow what’s up?

Do the controls respond properly in betaflight?