Wierd issue with a CM15A.

[Tuicemen]

I have several of these and a couple I've modified with a Taspi zeroW board. The other day I added a few new receptions with USB ports intergrated into them. I tested them for X10 issues after installing each and no issues. However I now see I can't  control my Christmas tree lights.
Wierd thing is other devices further down the circuit work. The WM100  works fine to control it as does another CM15A. I have a feeling this unit maybe failing but I need to play arround a bit the address is A15 my other devices on House code A work but I've not tested any above A8 other then A15 as yet.

[Tuicemen]

This just keeps getting weirded, it seems no x10 command is making it to this outlet from that particular CM15.
Using my XTBM Pro meter I see no x10 activity from this CM15A  and no noise. As I stated before  signals do go past this outlet to the next outlet further down the circuit from this CM15A.