Gitlab-CI Pipeline won't fail if a script is missing.

Summary

I have a Gitlab-CI Pipeline which does not fail if a script is missing or not started with the correct parameters.

Steps to reproduce

1. Set up pipeline or add a further step to an existing one.
2. Write a script with a script called inside that is missing.

What is the current bug behavior?

The pipeline step does not fail but instead only writes console output that the script cannot be found and the step finishes green (if nothing else fails).

What is the expected correct behavior?

The step should fail with an explaining error message.

Relevant logs and/or screenshots