Configuration specific value reverts to original value: Working in a part file, I am going to file properties and editing the properties under the configuration specific tab. When I write a new value in and click OK to exit it reverts to the old value

For example the image above shows the value Black that I have typed in for a specific configuration

You can see in the second screen grab (when I have reopened the properties) that the Colour row shows the reverted value 'Natural' in the value/text expression column and in the evaluated value column it is showing Black as I had previously typed in.

Then when I click in the Value column the evaluated value changes as well