Noted your Vref current settings.
This is Mine for both 12 v and 24 volt 3D Printer Systems.
Hictop Axis Stock 12volt 24volt
X-Axis 0.8 0.695 0.395
Y-Axis 0.8 0.695 0.395
Z-Axis Dual Stepper 1.0 1.396 0.710
E0 0.8 0.695 0.395
E1 0.8 0.695 0.395