I have a harmony 665 (=650), flirc gen2 and FireTV 4K working - kind of. While short presses of the directional, select and back buttons work, long pressing of buttons does not work. This is a problem for me with running my SageTV app which requires long pressing of the select button to bring up a menu. Does anyone have long pressing of remote buttons working with this kind of setup??? I can seem to find any definitive info. on this, so I am guessing long pressing needs to be added, or, I have set something up wrong.