Inconsistance behavior when configuring same webhook event for more than 2 endpoints

I’m using webhooks for my contact center and if I configure 2 webhook endpoints for exact same events, some events is not delivered to both endtpoints.

Each endpoint if configure on different application. If I configure them on the same application only 1 endpoint will receive the events

Endpoint A on application A:
Endpoint B on application B:
Both registered to task created and task completed events
If I call to the call center number. Endpoint A will receive both events but endpoint B only receive the task completed event. Sometime no event was receive at all…