I think it may be an already known, but when you are tied in elo with other people your name is not properly highlighted but a random one with same elo is instead.
You can see what I mean in my screenshot
Happens to me yesterday
Always happening . Maybe low connection. Or something
It's not related to connection, as you said, it ALWAYS happens.
Happened to me lots as well. Not a huge issue though but it's still something pointing out. Nothing to do with connection.
normal it happen when dq freeze a little