Send Message between process models for task exception not working

Hello, I have an issue with a record action process model that sends a message to another process model to raise an exception on a user task.
This was working previously, but seems not to send the message anymore.

I have checked the following to find a solution:

The record action is correctly picking out the correct process id to send the message.
Copy and pasting the "get process id" and "send message" nodes to a sandbox test process model correctly sends the message and throws the exception on user task.

Here are the set-ups for the send and receive messages: