I've looked at the Scientific Atlanta upgrade HERE which is an RM fiile with the same basic parameters, and it looks fine, but exhibits the same behaviour when I try to enter (or change) any OBC other than the one in line 1.
I also did a cross-check using KM, and a similar problem occurs
Is there a problem with Panasonic (old) and KM/RM? or is it just me? Should I be using a different protocol deaspite the clean learn/decode?
Edit: Upon further experimentation I found this odd behavior repeated in multiple protocols, so I re-installed both RM and KM. I'm not 100% certain, but it appears that in RM, the OBC column presumes/requires entries in base 6, as any imported numbers never display a digit greater than 5 in them - not sure whether this is true for all protocols, or just a glitch with the Panasonic (old). Still looking at KM to see if I've "fixed" it.