I THINK, you can’t have two different remote confs working at the same time in CE.
Some time ago in the LE forum, I found what could be the answer. To add a second remote copy second remote to storage\.config renaming to remotesecond.conf
But, I think you need to create the remote conf for the tv.
from NEW Repo for Remote files (Thanks to Betatester) there is a document to create remote conf from scratch, (yes it is convoluted)
As to why the gtking remote works in CE, I suppose a developer built it into the CE image, but as there are too many tv’s they can’t build it into images.