no its not. You have a mod in your folder that binds the straw toggle to m. so its used for other mods. Its not the fault of this mod. Test it without any other mod and you will see, workmode is m, strawtoggle is n.
If you want to fix it, change the input bindings in the modDesc
2 Comments for Combine JD 660 pack
M key does 2 things work mode and straw chopper
M for work mode and M for chopped straw or swath. same key for both.