Check you TV device "inputs settings" (under Devices > Settings > Adjust inputs) and make sure Method 2 (discrete method) is selected. Method 2 is the default for this TV model (LG 50PG60UD). It sounds like it got change to one of the other cycling methods. Then click next (x2) to check if the correct commands are mapped to the correct input labels. If this is okay, then check that the TV is set to the correct input in your TV activity(ies). Else, it could be a timing issue. Check the TV device speed settings (under Devices > Settings > Adjust the delays). You may need to increase the Inter-Device Delay.