Metadata card required field

Hi All,

We have objects with workflows and automatic state transitions that are in various stages of workflow.
When our metadata requirement for object changes - for example we add an additional property and make it mandatory the only way to make this work without causing existing objects to fail transition is by using metadata card configuration. If the property is set as required for that class, automatic transitions fails.
We need the required property to be made mandatory at the first stage of workflow only.
So the rule is set up to filter the state and make the property mandatory. This does not work.

Is there a bug or something i might have missed?