On my DVD device page 4 (hidden), I have a P-ON macro, consisting of:
1 DVD PLAY
2 DVD STOP
which works fine. No delay is required, and it doesn't work correctly if a delay is inserted. It also works fine from a shortcut on the POWER device.

On the hard Power On button, I have a System-On macro which includes a call to the P-ON macro. The System-On macro works fine except for the P-ON macro call; the DVD does not turn on. If, in the System-On macro, I replace the P-ON macro call with the two individual DVD commands, then it works fine.

A macro is supposed to be able to call another macro, is it not?