Hello,
I’ve been using Unreal 4.8 under Linux Mint 17.1 and have encountered an occasional UI bug. Specifically, when a modal dialog pops up, I typically cannot click any of the buttons. In order to clear the dialog I have to right-click it in my task bar and select “Close”.
Maybe I have an outdated UI library?
I put this link here so that people can see that this question is talked in AH 
Hm, and people wonder why Linux isn’t supported , very often. Its great for some things, but I consider this 'exhibit A ', and why I never use the OS anymore, because my time is too valuable and the # of apps that work in Linux are too low to even bother mentioning, but its GREAT ue4 is at least ;))
Perfect example so thx user for that at least, why Linux is still taking just 1.50 % market share ( while its a shame its not a lot higher!).
Moral to story I guess, use windows wherever you can, and if you can’t, use ‘unity’ ui ;)) ( noted if I ever need to test on NIX and I do want to someday)
cheers