I've downloaded some of the 1.6.4 modpacks and I've been trying to launch them, but when I press "launch" the console reads "beginning authlib authentication attempt", then "successfully created YggdrasilAuthenticationService", then finally "using authlib authentication data", then a bunch of stuff pops up on the console for literally only half a second, of which I'm too slow to copy down, then both the console and launcher close without any notice. Nothing happens after. I've reinstalled the...
Modpack Issues
Modpack Issues