Funny problem with macro

I made a macro and Icon for “_MergeAllCoplanarFaces”. I use this command a lot and have the Icon/macro on two toolbars. However, recently, one has stopped working and I get the result “Unknown command”. But the other one in the other toolbar works?

I deleted from the toolbar the Icon that was not working, then shift-copied the working icon/macro to replace it. It worked once, then stopped again. Here is a print of the command history showing the same procedure just using the different icons. How can _MergeAllCoplanarFaces be an unknown command only in some instances?

3 extrusions added to selection.
Command: BU
Command: _BooleanUnion
Boolean union in progress… Press Esc to cancel
Creating meshes… Press Esc to cancel
Command: _MergeAllCoplanarFaces
Creating meshes… Press Esc to cancel
Command:

3 extrusions added to selection.
Command: BU
Command: _BooleanUnion
Boolean union in progress… Press Esc to cancel
Creating meshes… Press Esc to cancel
Command: _MergeAllCoplanerFaces
Unknown command: _MergeAllCoplanerFaces

My Icon in my main toolbar.

Assigned to Rhino category

You misspelled the command.

MergeAllCoplanarFaces

not

MergeAllCoplanerFaces

You are correct. That is the problem. I have no idea how that happened. And interestingly, when I mouse over the icons both say “Macro 17”. How is it possible to have two macros with the same name?

Edit: How do I open an existing macro to see/correct problems? MacroEditor just gives me a window with no options to open an existing macro.

Edit 2. FOUND IT. Not the MacroEditor but the button editor.