Touch Display

I have a couple of R 30 iB Ipendants that are acting different. Some make me use the display key to go back and forth between screens while some allow me to touch between them as well as use the display key. I checked and all of them have $touch_enb true. Is there a variable that I am missing? Thank you for any support.

Thank you for all your support. It was ultimately decided for Fanuc to come out and disable them all. They did not pass on what was done.