Cant log in to technic platform

[cinnasketch]

Hi! Im new here, and I just downloaded the most recent launcher but it wont let me log in. I have also recently gotten a name change, just saying so because it might be relevant. I have already tried all suggestions ( use the email for the mojang account, not the username, using your past username, using the username i have now, seeing which password worked for minecraft.net and using it in the technic platform login) but nothing works. The only thing that pops up is "invalid credentials. invalid username or password." My minecraft logins work on all of the mojang websites and on minecraft itself but not on the technic platform sign in, does anyone know what I can do or at least what is causing this?

edit: i have also changed my password and then tried logging in, but still nothing.

Edited October 25, 2015 by cinnasketch
adding to the list of stuff that didnt work

[EvilOwl]

Log out of the vanilla minecraft launcher and log back in, then close it and use the same credentials in the Technic Launcher.