Resolve "Batch has been Modified or Back/Forward Synchronization Failure" Error in Lighthouse Transaction Manager

What is causing this Error?

The error stating "Batch has been modified or a BACK/FORWARD synchronization failure - view and verify again" occurs when:

• A user makes edits/changes to transaction details while another attempts the batch closeout. 
• The user edits a transaction, selects the back button in the browser, and attempts to submit the batch with totals that do not reflect the adjustment just made.

How do I resolve this Error?

1. Log out of Lighthouse Transaction Manager.
2. Clear your browser's cache and cookies.
3. Ensure no other user is logged into LTM making edits to the batch in question.
4. Log back in and attempt the batch settlement again.