Just a few minutes ago I decided to log out and log back in but when I try'd to log back in it kept appearing with invalid username so I went to my profile and my picture had changed. Just wondering if this is a glitch or if anyone else had this problem?
Nah, the green circle/red circle is a different glitch.
What time did you have this happen? Yesterday, something similar happened to me, where my armatar changed to the original shield armatar (the one with stars around it), and everything I clicked yielded a 404. When I clicked my username, it prompted me to log in. When I tried to, it didn't let me, saying the username is invalid.