Pub Sub Emulator Not Behaving As Expected

[styoe]

[

Firebase emulator pubsub not behaving as expected.
max_instances and concurrency not working.
First messages not passing and triggering the configured functions, the subsequent ones do.
Functions breaking randomly with ECONRESET without any descriptions.

[REQUIRED] Environment info

The example has been dockerised, using the andreysenov/firebase-tools:latest node image to run firebase emulator
Emulator is latest version 14.11.1
Functions are python3.12

its platform agnostic, same bug reproducible on every platform

Minimal example and detailed description can be found on https://github.com/CHAPTR-GmbH/-minimal-reproducible-firebase-pub-sub-bugs as well as instructions to run and reproduce the issue.

Thank you for helping us fix this!

](https://github.com/CHAPTR-GmbH/minimal-reproducible-firebase-pub-sub-bugs)

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