I'm currently updating a few old parts from a previous build, and have run into a problem numerous times regarding old sheet formats not transitioning into the new. Our current drawings auto-populate the various fields in the drawing, such as material, surface finish etc, from fields in the 3D model's custom properties pane. This allows us to change the various properties of the part in the model, and have them automatically change themselves in the drawing. However, older parts use our previous method of property documentation, which was thru the configuration-specific tab of the properties menu. This is a problem, as this previous method, even when I reload the drawing sheet's format, or delete the drawing and start fresh, still overrides the new method's auto-populate. Does anyone know how to fix this problem?