Important Geometry Options for CAD Integration
Select a Geometry Cell in Workbench to see options in the Properties window.

Control dimension of bodies coming from CAD

Make sure Parameters is checked and that the parameter key (filter) is appropriate for CAD parameters.

The default parameter key filtering means that only parameters whose names start with DS will come through. This is the default for the Workbench Tools>Options for Geometry Import. To import parameters with different prefixes or names, assign an appropriate prefix or clear the Filtering Prefixes and Suffixes field.

The Attribute Key should be empty or "Color" to bring in CAD colors.

Material Properties must be checked to bring in the material assignment.

The Mixed Import Resolution option is used to resolve parts with mixed dimension (typically from Pro/E)

Refer to Ansys Help for details.