Greetings,
Very subtle, but I understand if it bothers you. This is a timing issue that I have seen come and go with various boards.
The cause is often a combination of things. BIOS revision, BIOS settings, Type of RAM, etc. The one thing that does usually cause the behavior is the software itself. Some versions run flawlessly, and in perfect sync, then an update breaks it, then it gets fixed, etc. Its not been consistent in every hardware scenario. If you are running "Fast Boot", try disabling that.