The Help system first sends all discrete Power & Input commands to all devices deemed & configured to use the discrete method. Then, for each device, it ask if its power state is correct, then it checks their inputs.

The default power configuration for the Panasonic PT-AR100 projector is to use the discrete method (A button on the remote for On, and a different button for Off), but it does not have discrete power commands. It uses one "PowerToggle" command for the Power On function, and 2 "PowerToggle" commands for the Power Off function. That is asking for trouble. Try changing the configuration to use the toggle method (One button on the remote for turning it both On and Off).

The dataset does not have discrete input commands for that device. Try a similar model, or try the "Discrete Code Hunter" forum under "Jump to" at the bottom of this RC page.

Note: If you can't find discrete input commands, then it might be easier to add the "inputnext" command directly in the Projector's activity(ies) mapped to a convenient unused button.