Note goes to a X when trying to do a high note

[Rocksmith Guy]

I'm trying to add a high note but it turns to a X and i believe that is a mute so does anyone know how to fix this?

[raynebc]

You must be using a version of EOF more than a month old. Old versions of EOF would make a fret value X (string muted) if you entered a fret value that was higher than the track's fret limit (Track>Pro guitar>Set number of frets/strings). Current hotfixes will automatically ask if you want it to increase the fret limit of a track if you input a fret value that is too high.

[Rocksmith Guy]

You must be using a version of EOF more than a month old. Old versions of EOF would make a fret value X (string muted) if you entered a fret value that was higher than the track's fret limit (Track>Pro guitar>Set number of frets/strings). Current hotfixes will automatically ask if you want it to increase the fret limit of a track if you input a fret value that is too high.

Thank you.