E1 & E0 both driving E0 motor on Tango board

I am having a strange issue that I can't figure out.

I have an Anet A8 frame that I have upgraded to a Tango board (upgraded rumba board) with a diamond 3 color mixing hot end.

Firmware complete package is attached on the github forum post against the board, sorry for the off site pointer, but this forum won't let me attach the zip, file is 4.7MB so should be under the 8MB limits.... I made a minor edit to the pins_rumba.h to add the bl touch pin to use the zmax input as a possible note of impact.

https://github.com/bigtreetech/Tango-3D-Printer-Motherboard/issues/4

The issue is that when I use the LCD and tell it to move E1, the printer moves the E0 motor instead. I know the drivers, motors, etc are all okay as they came from a functional ramps setup that was disassembed to upgrade the extruder count.

I am stumped to where the wrong motor directives are originating, hoping someone here can help to figure out if this is a bug, config issue, or etc.

Appreciate any guidance you can offer

Use a control program on a computer, lcd hides what it is doing

manually test it


T0; use E0
T1; use E1
T2; use E2

then use standard G1 E## commands to move the active extruder.

NB hotend must be hot or controller will refuse to move the extruder

Okay, tried driving with octoprint and everything is okay from there. Looks like a bug in the lcd interface