my new Minecraft Launcher is saying that im using a wrong username.

my new Minecraft Launcher is saying that im using a wrong username, even though im putting in my lagit, bought account.

What i expected to happen is that it should have done is started logging me in after i clicked "add account" and logged in with my account below those settings.
i thought it would stat up and say "Updating Minecraft" like it should do (it's been a while since ive played on minecraft online due to my java breaking momentarily") but when i saw a green bar on the bottom rising, i realized that's what was updating it.
What actualy happened was it had a popup that said "Sorry, But your username or password is incorrect! Please try again, and check if your Caps Lock key is not turned on. If you're having trouble, try the 'forgrt password' button or visithelp.mojang.com". so i checked the caps lock, then i retyped my account (carefully) then entered it again. Yet again, the popup came up. i then reset my password and tried again, still, a popup came

Steps to Reproduce:
1. login
2. load any version
3. see popup
By the way, this glitch might only be for me, i realized this from my friends who play on the new launcher.