If you search a plan object from Cadimage in BIMComponents you may need to add the attributes for the plants to your project to display the surfaces correctly.
To enable the attributes in your file you can download the attributes file (Phormium Materials) from :
https://www.mycadimage.com/
Then go to Cadimage Tools>Goodies
1. Then open the attribute manager> surfaces.
2. Open the file
3. Select the attributes and click << Append
4. Apply the changes and click Create.