I have several nexus devices, 7010's/5010's. On all of these devices when I connect a console cable to them and open the connection the banner message is not displayed correctly (everything is spread out and line breaks are off) and is in all caps. If i try to login, my login is in all caps as well and doesnt work.
If i let it sit there for a minute it will eventually re-display the banner and login correctly and everything is fine.