I just found the solution to the problem Quickbooks "supposed to be" staff are not able to answer.

I had the same problem recently when I change template for a shipment, then after when I was doing a new invoice it wasn't returning to my usual template.

So here is how to do.

Let's say you have  "Template 1" and "Template 2".

If you want the "Template 2" to turn as default, you'll have to first save your invoice with "Template 1", then switch to "Template 2" and save again. Then next "new" invoice you'll do will directly with "Template 2".

But you'll need to first create and save the invoice with "Template 1".
If you just switch directly to "Template 2" when you create a new invoice and you register like that it won't work. You need to register a first time with the template you don't want. And then it works like a charm.

Quickbook team, will you be one day able to answer the question asked ? Everytime the answer you give is not what asked.