(Ingenious writes in previous message): "...you enter a 10 second envelope in which remote keys perform their DEFAULT functions instead of the functions selected by the advanced codes you assigned to them via the 994 code?"
Yes, that is correct -- but only for the first keypress within the 10 second envelope: subsequent keypresses perform the advanced codes assigned to them via the 994 code regardless of how much time has passed -- even if it is less than ten seconds.
Using the television macro again re-initiates the 10-second envelope problem.
Pretty weird, eh? I wonder if it might be some sort of memory fragmentation problem combined with some sort of memory loading issue. I'm not sure, but I think this macro was the last one I entered so maybe the codes are spread over the last little bits of available memory in different pages/banks. Maybe it is loaded in bits and pieces in a way that is an artifact of how I programmed (and reprogrammed) them in. Maybe pressing a key forces a "defragmentation" of active memory. Of course, I am speculating -- I have no actual knowledge regarding the architecture of this device.
I think I will try reprogramming the macros with the televison macro first and see what happens.
As usual, I am grateful for any comments, suggestions, observations, etc.