Not a problem, I was trying to print some previous gcode files. Thank you for your prompt response.

I just installed my DuetWifi (firmware 1.16) on a delta with a diamond 3color mix head and I can not get volumetric extrusion to work (I get over extrusion more then 2x). I am using 'M404 N1.75' to enable volumetric extrusion in firmware. I also tried 1.17 same results.
Prints great if I disable volumetric extrusion in the slicer and firmware (M404 N0), using linear extrusion. No other setting changed.
I have a single driver for extruder #3 hooked to E2 outputs.
Is there a additional command to enable volumetric extrusion? Anybody else have this problem?