Dunning Letters with no Invoice copies

Summary:

Hello everyone,

We’ve encountered an issue with attaching invoice copies to dunning letters. Our system went live in April for one division and in September for another. Up until mid-December, everything was working fine, and all dunning letters were sent to customers with invoice copies attached.

However, since mid-December, we've noticed that the invoice copies are no longer being attached to the dunning letters. We tested in a lower environment using the seeded template and bursting query, and everything worked as expected.

We then redeployed the seeded template and bursting query in PRD and it worked for a couple of days, but then the issue reoccurred. It seems to be very inconsistent.