Some Surfaces Appear Checkered Black and Purple

Issue Description

After opening a project file on a different computer, some surfaces that previously displayed custom materials now appear as a checkered black-and-purple pattern in 3D.

Why did this happen and how can I fix it?

Solution

This issue on 3D Views occurs when Archicad cannot locate the textures associated with certain materials. It happens when:

• The project is opened on a different computer that does not have the required project libraries.
• Custom materials were linked from an external source, and the texture files were not embedded in the project.
• The library containing the textures was not loaded properly.

To restore the missing materials, follow these steps:

1. Check for Missing Libraries
   • Go to File > Libraries and Objects > Library Manager.
     
   • In the Library Manager, check if any libraries or attributes are listed as missing.
     
2. Re-Add the Missing Attributes
   • Select Embedded Library in the Library Manager.
   • Click Add New File(s) to Selected Folder.
   • Locate and import the missing texture files.
     
3. Reload and Apply Changes
   • After importing the missing attributes, click Reload & Apply to update the project.

TIP: If you need to migrate your project from one computer to another, make sure the libraries are located at the same destination or save your project as a .PLA (Archicad Archive project) as this file format packages the project's libraries onto the file.