After recent update, credit card account got changed to a loan. How do I convert it back?

I've been using a specific credit card account since 2008. I use it for all my normal monthly spending, therefore I have all my bill reminders set up to go to that account when I enter them. After the last Quicken update (did not change versions, just updates) this account somehow was converted to a loan. It now shows loan balance, etc on the register view, and it changed all my bill reminder accounts to a different account (appears to have chosen the first alphabetical account). Is there some way to change this back? I've looked anywhere and can't see how to do it. I don't really want to have to start a new account since I've been using this one for 13 years.