I have read in different places that the psx01 will not retransmit some of the pan,etc. commands for the cameras that the 731 does. I am wondering if that applies to the slim line remotes as well... What I have doesn't work together(PSX01, KR22a).
I'm seeing something similar: My SR731 works with some SS13A "Stick-a-Switch" units but not others.
For the "bad" SS13A units, the LEDs on the SR731 don't blink and the signal isn't repeated (as determined from a W800RF32A receiver).
All the SS13A units work fine with a Transceiver, so I assume the SR731 is sensitive to some minor timing or frequency discrepancy between the units.
For this SR731, there's no indication from the LEDs that it's repeating any of the Pan/Tilt signals transmitted by a CR14A Pan/Tilt remote other than from the Camera Selection buttons (which are just standard X10 RF).