When Webmail Archive Manager (WAM) accesses your webmail email account, the first thing it does is download the folders in your account. Sometimes when there is a special character in the name of the folder such as an ampersand (&), the email provider has trouble referencing that folder name. USUALLY the email provider handles these special characters just fine, and it doesn’t affect anything. WAM tests this by trying to access that folder back to the email provider. If the email provider returns an error during this test, that means they aren’t handling that special character. It’s those folders that are reported as “Problem Folders”.
The simplest way to fix these folders is to print out the list from WAM, and log in to your webmail email account, and rename those folders without the special character. For instance, OA & B Materials can become OA and B Materials.