Maybe I'm going crazy, maybe I'm not. But has the console output always been red? (This is direct video capture, not a remote terminal session) or was this changed in 6.4?

This is answered in the release notes.

And that fixed it. Thank you very much.

could I link to it ? or tell what u did

It's the first post in this thread.  Scroll to the bottom. The first item under the heading Known Issues:

 

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Certain motherboards with on-board Aspeed IPMI graphics adaptors may lose video or switch to different colored text during the boot process. To prevent this, add the nomodeset kernel option to your syslinux append line.