I'll help you out, FrancisWymanPTO.
If excluded transactions are added to your register, we can check when and who added and removed (undone) them. However, we are unable to determine when and who excluded them coz these activities are already on the Banking page. We do not have log reports for activities on that page.
To check when and who removed the transactions from the register:
- Click the Gear icon and choose Audit log.
- Click the Filter option and set a wider date range.
- Choose the Transactions filter and click Apply.

You can always go back to this thread if you need anything else.