markus71 wrote:Edit: The next day it worked with all the default settings, maybe something needed restarting, rebooting, not sure. So currently "Wait for startup command" is back to ticked, "Communication timeout" is back to ticked, "Tool Change" is back to "T$". But Baud rate is 57600 currently. I've been printing with these default settings the whole day reliably. It seems sometimes I have to restart the control panel. Basically I don't touch the i3 control box at all besides the on/off switch and when I change filaments.
If the settings are changing, it probably means that you have the firmware overrides enabled in your process settings. So you need to Export the firmware configuration as a new name and then enter that in your process settings on the G-Code tab (this video explains it in much more detail: https://www.youtube.com/watch?v=NYPUAqT4UyI