Emailed Receipts Not Appearing in Concur

SCenter

I've been using Concur for almost ten years with only minor issues/glitches. However, as of this week I have encountered a big issue: when I email receipts to either receipts@concur.com or receipts@expensit.com, they are no longer appearing in Concur. This happens in both the iOS app and the Concur website. They are not appearing as expenses or as available receipts. I have tried multiple email addresses, all listed as "verified" in the Concur app and website, and they are still not appearing within concur. This hampers my ability to add expenses for travel, such as airline tickets and rideshare charges.

Help?

SCenter

Additional data:

I have sent approximately 10 receipts via email, from three different "verified" email addresses, over the last 24 hours. None have made it into Concur as either "Expenses" or "Available Receipts."
I have also tried emailing both "receipts@expenseit.com" and "receipts@concur.com," both with no success.
I've tried uninstalling and reinstalling Concur on my iPhone - this did not help.
The emailed receipts are not appearing in either the web-based Concur program or the Concur iOS app.