@idcoilgroup you are correct, the axis number should be X0 Y1 Z2 A3 B4 C5, so M563 P1 X3 Y4 should be correct.
Did you change them to linear axes as @JoergS5 suggested, by adding R0 to the M584 command that creates the ABC axes. Also make sure ABC are homed, and are at an axis position that means they don’t break axis limits set by M208.
Ian