Trouble Saving Machine Settings: Extruder start/stop

[fuzzylogic9090 0]

Having trouble saving printer machine settings for Extruders 1 or 2 - Start & Stop G-code on Cura 4.6 or 4.7.

(Note: Other parameters like Nozzle size save fine.)

Log gives me this:

2020-08-29 12:43:00,382 - WARNING - [MainThread] UM.Settings.InstanceContainer.setProperty [372]: Tried to set value of setting machine_extruder_start_code that has no instance in container custom_extruder_1 #4_settings or its definition Custom FFF printer
2020-08-29 12:43:04,197 - WARNING - [MainThread] UM.Settings.InstanceContainer.setProperty [372]: Tried to set value of setting machine_extruder_end_code that has no instance in container custom_extruder_1 #4_settings or its definition Custom FFF printer
2020-08-29 12:43:06,077 - WARNING - [MainThread] UM.Settings.InstanceContainer.setProperty [372]: Tried to set value of setting machine_extruder_start_code that has no instance in container custom_extruder_2 #4_settings or its definition Custom FFF printer
2020-08-29 12:43:12,169 - WARNING - [MainThread] UM.Settings.InstanceContainer.setProperty [372]: Tried to set value of setting machine_extruder_end_code that has no instance in container custom_extruder_2 #4_settings or its definition Custom FFF printer

 

This a bug or am I missing something?  Thx