Per the issue, pls re-sync the remote and power off the hub and plug in it again., any difference?
If still no help, pls choose your device, , click edit----- repair key ----select the lower button----- -command repeats, pls try the repeats separately and check which one could work with your device.
Once you confirmed it works, pls apply to all commands, pls see the reference pictures.
If above steps still no help, pls kindly provide the specific model of your device to us, such as Brand:LG Model: 60UF7300, then we can pass it to our engineers team for checking, tks for your patience.