I click on the Hextech tab, get "LolClient.exe has stopped working," and the client closes as soon as I dismiss the popup. Restarting my computer/reopening the client has not fixed the problem.
that's been happening to me latly too but I think it should be fixed fast bc sometime I miss my friends online and they start a game without me 
Yep, that happens to a lot of people. I'm not sure they're going to address it just yet though as the new client is a pretty big priority for them right now. Expect it to be fixed there at the least
I click on the Hextech tab, get "LolClient.exe has stopped working," and the client closes as soon as I dismiss the popup. Restarting my computer/reopening the client has not fixed the problem.
Same here... I tried lost of thing...clean project files...repair etc. May be they will fix it their self.
Guys, here's the same problem http://boards.na.leagueoflegends.com/en/c/bug-report/t55v6h5K-client-crashes-after-clicking-on-loot-and-crafting-inventory-button Some guy wrote to the support and here's the question from Riot " Hello.Sorry about that. Do you happen to use plays.tv or other 3rd party program? We are noticing that bug may be related to the use of plays.tv. " So i turned my Plays.tv off and now I could open "loot and crafting invertory" Then I launched Plays.tv back and still could open "loot and crafting" Just relaunch 3rd party programs
