set the graph to weekly and you see the oscillation. You also see a unit close to me with half the values. It’s a unit with the same components like me but another firmware an older one.
I don’t think that it is a issue from transistor soldering.
A higher compensation capacitor (C9) seem to amplify this but not heal. So I also changed the tube. At first it seems to be better but it isnt away. I also changed the pwm frequency to 6500 to get a better duty.