It seems to be the same with my XT Pro connected my Mac running Mojave. I cant find the Monkey installer , Gearbox or anything Line 6 related on my hard drive or on their website. I'm sure it was on there when I upgraded to this Mac in April this year. I managed to download Licence Manager but that just tells me what I have and not what is incompatible. I am going to try the custom tone section to see if I can download a file straight into XT Live.