Custom Events not firing after turning on batching notifications

[Thomas]

We're running JIRA v8.3.0.

I've got a custom event that is meant to fire on a post-function in the workflow (last step). The custom event was tested in our last version 7.x (can't remember which) and worked fine. 

The event just brings in custom fields from the issue and sends an email to users that are inside another custom field in the issue.

For whatever reason it hasn't fired since the upgrade. 

We've turned batching notifications on (our favorite new feature), but I noticed this line on the admin screen - "If you modified email templates, you'll need to reapply your changes, as batched notifications are based on different templates. Some changes, like adding custom fields to emails, will no longer work."

This indicates that the batching notifications is the problem. Will no custom events fire if they rely on custom fields for their Velocity template? If not, what does reapply my changes mean? Anyone else encounter this issue and have a fix?

[Thomas]

We've decided to stop usage of the custom events. They are clearly not working as intended, and we don't have the resources to dig into the issue further. We decided to implement an application that responds to a webhook instead.

I look forward to the JIRA documentation being updated to inform this issue in the future.