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This workaround worked for me:
Go to any invoice and switch to 'Old Layout'
Then go back to setting and re enable and save progressive invoicing.
The system will now prompt you to make the progressive invoice and work.
You can keep it on the old layout, or switch it back. I would note that in my scenario, it was a 25% down and then a final bill so I just made both invoices before switching back. It looks like it is a bug in the new layout.