6412-P3 RC Light Stays On, Controls Freeze

[Mexicanuck]

Several months ago I started having problems with some remote control functions. I couldn't quite figure out what it was, but last night I noticed something.

Sometimes when I try to use the RC (Harmony 880), the 6412 freezes up. I try to move the on-screen controls left, right, up or down and nothing happens. It seemed this freeze could go on for a couple of minutes at a time.

This sometimes happens when I FF or REW. But it more noticably happens when I stop play and get the controls to return to previous screen, play, etc.

Last night I noticed that when the freeze happens the RC light on the 6412 stays on. It is as if the 6412 thinks it is still receiving a signal from the RC. I can leave the room with the (IR) RC and the light stays on the 6412.

If I don't send any further commands using the RC, the freeze seems to last 15-30 seconds. But it also seems that if I don't notice that the RC light is on, and push buttons trying to make something happen, that the freeze lasts much longer. It is as if the 6412 is storing the RC signals, then freezing for a duration for each signal received.

(BTW, although we typically use the 880, this has happened with the Shaw/Motorola supplied remote control as well.)

Is this a known bug? Or is it something that others have not been experiencing?