BT4 is now using Blizzard Action Bar 1 for Keybinds for BT4 Bar 1 (and the stealth/form bars and such) by Default. and when you set keybinds using the BT /KB command
This causes Hero-lib to not see the Keybinds for anything on Bar1
Work around is to go in to blizzards Keybind interface and set Bartender4 Bar 1 keybinds to the desired keys
Hero-Lib will need to get Keybind info from both Blizzard Action Bar 1 (possibly others) and Bartender

This does not appear to be an issue any longer. Tested today with BT4 on a Rogue. Bar1 keybinds work fine. Paged Bar1 keybinds work fine. Please feel free to comment or log a new issue if you are still having problems.