I repeated the bright/dim macro test I did several weeks ago. This time I made sure the CM15A macro was indeed running just on the CM15A by disconnecting the USB connector. In that case the macro did brighten the light to 100% before setting each level, which is the same result reported by Boiler. Interestingly, I now receive the same result even with the USB connected. I see the Bright 100% logged before each Dim command.
I apparently left the "Run from PC" box checked when I tried that test previously because I obtained the same result whether triggering the macro from the AH screen, or via a X10 powerline command with the PC connected to the CM15A. If I check that box now, I see the doubled commands that I reported last time.
Jeff