These are things I started seeing today, most likely from when we upgraded from 4.1.10 to 4.1.11 on Sunday.
This happens when saving the order of your styles.
This happens in the Style Variable Editor for any style, including vBulletin's default.
It should be noted, though, that neither are causing problems. For the first one, it still saves; for the second one, the changes still go through. I'm just wondering what they're from.
If an official vBulletin staff member needs a test administrator account, let me know, and I can PM you.