The embedded credit card payment option keeps failing to be added to my client's email invoices. 

I have to go and edit each one individually after the fact. VERY TIME CONSUMING. It has worked flawlessly until 2 months ago. I double check that my defaults are correctly set to embed the credit card payments and then they get sent out and the credit card payment option fails to embed. However, it will embed the credit card payment option correctly if I send out one individual invoice at a time. I have talked to Quickbooks, done screen sharing, and have not been able to come up with a resolution. I transfer all of my work orders from software called Bluefolder and they arrive in Quickbooks with several work orders bundled in each client's invoice. The invoices arrive in Quickbooks ready to be sent out. I then double check the default payment options to make sure credit card embed option is ON and it is. I send send out a batch of about 50 and when they get sent out, the invoice arrives in my client's email and credit card payment option is no longer turned ON.

Any insight would be appreciated.