To put it plain and simple:
Keyboard: Ctrl+0 -> finds Hot bar 2 - 8
Controller: Ctrl+0 -> finds Hot bar 2-8-- but it doesn't work because you can't have Select, a useless button on a PC controller (ps2 controller here), target a keyboard keybind because hot bars only respond to keyboards due to keybind args.
Please allow Controller binds to access hot bar locations OR cross bar locations OR allow the Keybind's Hotbar and Gamepad menu to share functions.