Issue Summary

Automation error message not displayed when having an invalid rule and trying to save changes

Steps to Reproduce

1. Create automation.
2. Add rules to the automation that rely on anything that can change like a status, for example.
3. Save the automation, chance the value (in this example, rename the status).
4. Go back to the automation, edit it and attempt to save with the now invalid condition.

Expected Results

A clear error message is shown indicating what is missing to be able to save the automation changes.

Actual Results

There is no message shown on screen and there is an error 400 visible in the Network tab of the developer tools:

Failed to load resource: the server responded with a status of 400 ()

Workaround

Look for any criteria ser in red and verify what is incorrect in it: