Batch Payment input variables exceeded 1000

Situation
Batch payment does not post to database

OpenEMR Version
I’m using OpenEMR version 5.0.0 (6)

Browser:
I’m using: Current Firefox

Operating System
I’m using: Windows 10

Logs

I understand I can edit php.ini to increase the value, but I’m curious why this happened. I’ve posted thousands of payments to date and never experienced the issue.