When you invoice a job that has labour, product, GL, or disbursement lines, and you choose Total by Job Line Category for one or more line types on the Job Invoicing Options dialog, you can post the customer invoice successfully. 

If you then create a customer payment and allocate it only to that posted job invoice, posting the payment may fail. On the Customer Payment screen, when you select Post, you may see this message: Something went wrong. The invoice itself posts without error. 

The failure happens when you post the payment against that invoice.
 

Impact

This affects you if you invoice jobs using Total by Job Line Category and then receive payment against those invoices separately — for example accounts staff, finance users, and administrators working in the Jobs module and Customer module.
You can still create and post the job invoice, but you cannot complete the payment until the issue is resolved or you use the workaround below. This interrupts cash receipt and allocation workflows for affected job invoices.
 

Latest Update 

The team has identified the issue, determined the affected users, and is currently testing a fix.