Do you have all the icons in the correct path in the default profile directory as well?
because if not it might noch display them due to this. maybe give them just a name and no icon for starters
for example something like this:

cmd: "Machine.Start" "Start" imagechange="true" stroke=1.1
cmd: "Machine.Stop" "Stop" imagechange="true" stroke=1.1
cmd: "Machine.Pause" "Pause" imagechange="true" stroke=1.1