I was struggling with my prints, and tried to re-calibrate my extruders step per mm setting in the Config file.
No matter what value i tried, nothing changed. Same length of filament no matter extremly low or high values.
Turns out that when autotuning the hotend´s PID, i´ve created a Config Override when saving the autotune with a G500.
My changes in the Config file was neglected, because a separate steps per mm value was existing in the Config Override!
To view the content of the Config override, I sent a G503.
To set my real value in the config override file, I sent G92 E(my step value)
Hope this help any one out some time!