Whenever I save the part evaluated value in custom properties gone blank.see image
I have to open that part again and click one time on value/text expression to get evaluated value in custom properties.see second image.
What version of SolidWorks are you using? Uploading your model would be a great help also.
Also, your dimensions were created outside of a sketch or feature which I highly recommend not doing because they are only reference dimensions (indicated by the RD1 in the dimension name).
Retrieving data ...