Visit Mint Support for more support information: www.mint.com/support
If one or more of your Members 1st accounts are not appearing in Mint, you may need to remove them from Mint and re-add them. Doing this however, will delete all transactions and history for your Members 1st accounts. If you wish to do this, please refer to this document: Removing & Re-adding Accounts in Mint
To add your Members 1st Visa credit cards into Mint, please follow the instructions in the following document: Adding M1st Visa Credit Cards.
If you want to search for a specific issue, you may refer to the Mint Community by Intuit Support to see if someone else has ever experienced a similar issue and what, if any, solution there was for the issue.