Chat With Support and reference this article. 

Workarounds: 
  1. Go to Bookkeeping > Pending Donations and/or Bookkeeping > Pending Matching Gifts to export an Excel file with the current Pending Gifts for your Thon Event (Recommended)
  2. Run a People: All Participant Report with the Pending Donation Amount and Pending Matching Gift Amount fields enabled
  3. Run a Participant Detail Report with the Pending Donation Amount and Pending Matching Gift Amount fields enabled