One more bit of data: Level 3 event viewer shows no activity for H button on or off from RemoteLinc. G button (the one that wouldn't trigger a program until I put it in a scene) shows the following:
Wed 03/02/2016 09:57:52 PM : [iNST-SRX ] 02 50 35.00.E9 00.00.08 CB 13 00 LTOFFRR(00)
Wed 03/02/2016 09:57:52 PM : [std-Group ] 35.00.E9-->Group=8, Max Hops=3, Hops Left=2
Wed 03/02/2016 09:57:52 PM : [D2D EVENT ] Event [35 0 E9 8] [DOF] [0] uom=0 prec=-1
Wed 03/02/2016 09:57:52 PM : [ 35 0 E9 8] DOF 0
Wed 03/02/2016 09:57:52 PM : [D2D-CMP 0028] CTL [35 0 E9 8] DOF op=1 Event(val=0 uom=0 prec=-1) is Condition(val=0 uom=0 prec=-1) --> true
Wed 03/02/2016 09:57:52 PM : [D2D EVENT ] Event [35 0 E9 8] [sT] [0] uom=0 prec=-1
Wed 03/02/2016 09:57:52 PM : [ 35 0 E9 8] ST 0
Wed 03/02/2016 09:57:52 PM : [iNST-SRX ] 02 50 35.00.E9 00.00.08 CB 13 00 LTOFFRR(00)
Wed 03/02/2016 09:57:52 PM : [std-Group ] 35.00.E9-->Group=8, Max Hops=3, Hops Left=2
Wed 03/02/2016 09:57:52 PM : [iNST-DUP ] Previous message ignored.
Wed 03/02/2016 09:57:52 PM : [iNST-SRX ] 02 50 35.00.E9 1E.48.6D 41 13 08 LTOFFRR(08)
Wed 03/02/2016 09:57:52 PM : [std-Cleanup ] 35.00.E9-->ISY/PLM Group=8, Max Hops=1, Hops Left=0
Wed 03/02/2016 09:57:52 PM : [iNST-DUP ] Previous message ignored.
Wed 03/02/2016 09:57:53 PM : [iNST-SRX ] 02 50 35.00.E9 13.01.08 CB 06 00 (00)
Wed 03/02/2016 09:57:53 PM : [std-Group ] 35.00.E9-->13.01.08, Max Hops=3, Hops Left=2
Wed 03/02/2016 09:57:53 PM : [iNST-INFO ] Previous message ignored.
Wed 03/02/2016 09:57:53 PM : [iNST-SRX ] 02 50 35.00.E9 13.01.08 CB 06 00 (00)
Wed 03/02/2016 09:57:53 PM : [std-Group ] 35.00.E9-->13.01.08, Max Hops=3, Hops Left=2
Wed 03/02/2016 09:57:53 PM : [iNST-INFO ] Previous message ignored.