So far I've had very few issues with GOG 2.0 and am liking it a lot. I am however having one small issue and that is with my few Origin games. They are showing up in my list as they should, but none of them show as being installed. When I click on each, at the top it says "Install" where "Play" should be and when I click it, it launches Origin, but does nothing because the game is already installed.

Solved: At some point after restarting GOG again, it started showing normally. Kinda random considering I had already tried restarting GOG earlier. Weird, but it's fixed. Sorry.