Data card not picking up custom properties from .slddrw

Our models contain all the custom properties and are then linked to the sheet and populate the titleblock and thus the data card this worked fine until new data cards were created for different types of files which have different titleblocks and custom props. When the new cards were created by the Admin he renamed the control variable names, for example, description 1  became description 1A and so on. Could this be why the data card populates for the model but not the sheet?

SolidworksWorkgroup Pdm