Yes, I feel you for sure... The good news is that the old shipping manager is still working for us on QB Enterprise v24.0, even though it still prompts me to choose between the new and old one in the pop-up. *knock on wood*

If it completely goes awry, we're prepared to use UPS WorldShip and FedEx Ship Manager software on our devices as a backup plan. The downfall is that we wouldn't be able to have addresses "prefill" into the recipient fields while trying to create a shipment from the carrier software. Unfortunately, some manual work will be required, but we'll still be operating, I suppose...