Categories changed by Quicken after re-authorizing my American Express account

I had to re-authorize my American Express accounts. The first attempt for my corporate card didnt work; I couldn't see the account on the authorization screen. THIS IS A KNOWN ISSUE.
However, on my personal AMEX card, I could see the account, and the re-authorization completed, but many of the categories in the account were changed to a single category that I don't use much. I have restored my quicken file from a backup, and am reluctant to perform any more updates on those accounts.