Is anyone else having problems with their Zoho Invoice integration with Zapier?

My integration broke about two weeks ago and has been causing me major problems ever since.

My first problem is that whatever update they did removed the customer fields from customer creation.  The second and more serious issue is that my reminder emails are not being sent because it says that the invoice and the customer are not connected.

It's strange because when you look at customer, the invoice is clearly connected.

I've tried fixing this for a couple of weeks and contacted Zoho invoice customer a couple of times.  No help yet, just general reassurances that they care about me, which is not helpful for my business.

Any thoughts on what I can do to get this fixed?