One (1) Data Source Process not providing matches

Summary:

I am creating a Transaction Matching Recon between GL and Bank with following Match Processes:

- Match Process 1: Betweeen GL and Bank (One to One Mapping)

- Match Process 2: Within GL (One to -One Mapping i.e. between Debit and Credit)

Auto Match identifies any matching transactions as per Match Process 1, but Match Process 2 doesn't seem to provide any matches. The criteria for both processes appears to be similar to me. Is there any other special consideration for "One (1) Data Source Matching" i.e. to match transactions within GL?

Match Process 1:

Match Process 2:

Code Snippet (add any code snippets that support your topic, if applicable):