Hello, To start my print, To is ok on the machine. T1 and T2 wait. To print with T1 or T2, (after retracting T0) I need to advance 50 mm of filament. At the first tool change, T1 or T2 does not advance 50 mm. Just the normal feeding rate. So, print without filament for 50 mm. With 3 colors S3D does ...