late reply sorry
your issue with the combo and the file in general is that you possibly had one time with RICE where you didn't read the settings from the board. Next time you read the settings, you have incorrect strings read from the file, so in your case, the best is to edit that file manually to obtain a normally looking file.
but reading this again, you have errors when reading the settings via RICE ? could you please post a screen copy of the max window showing those errors ?
for the menuvol (which is supposed to be only in the override file), I'll double check, there's possibly a bug in the code but I'd like to trouble shoot the rest first.