Invalid Log In

[JJGaming97]

Hey, I seem to be having a problem when trying to load up my Minecraft account on the FTB Launcher. Whenever I go to launch any packs from the Launcher I get a pop out box saying "Invalid Log In". I went to the Minecraft website and logged in to my account using the same details and I was able to log in. I also tried it on the vanilla Minecraft Launcher and my account also worked there.

The problem of not being able to log on only seems to be on the FTB Launcher. How can I possible fix this problem?

Many thanks

-JJGaming97

 

[lavarthan]

Welcome. Since you said vanilla I assume your account is premium, as in paid for. Have you tried using your e-mail you used to sign up with Mojang account?

 

[DaLynxx]

You might wanna follow http://forum.feed-the-beast.com/threads/invalid-username-or-password-after-1-3-0-update.36035/
There is currently no solution that works for me... but it might be related. Add a post there and state what your configuration is (OS, Java version, etc) and some info on what you have tried. That might help us and the creators of the launcher to find what's wrong.