I have the latest 2017 MBP 2015 w/ Radeon 560
I’ve been using the cable just fine for about a month, both via Mac and Bootcamp.
Today I was adjusting my settings in my bootcamp Win 10 and suddenly the screen blacked out. Since then, my external display never got connected again, always showing “no signal” and windows showing “USB devices unrecognized, may be broken” message. The cable and my screen works fine in Mac, except this time a message jumps out on the screen “Caution: please use LG-provided cables.”(something like that).
I play a lot of games on bootcamp and it won’t be possible without my external display connected.