PAce STU-100 STB Remote can't be lernt by UIRT :(

Hello,
I am trying to get sage working with USB-UIRT, when I attempt to learn the remote nothing happens (no red light on the uirt) however when its not learning the red light comes on with each key press of the remote.
Any ideas ????
I can use another remote and it learns it ok, its onlt the remote from the STB
I am trying to get sage working with USB-UIRT, when I attempt to learn the remote nothing happens (no red light on the uirt) however when its not learning the red light comes on with each key press of the remote.
Any ideas ????
I can use another remote and it learns it ok, its onlt the remote from the STB