Missing materials issue often occur if the model has been created using some 3rd party renderer (i.e. Vray) and then exported as an exchange format. While it is usually normal and is considered as an exchange format limitation, we offer free file format conversion to standard material setup if possible. In that case, exchange format will have most of the materials with texture links preserved. If there is an .mtl file missing/empty, the designer or CGTrader support should be contacted.
Materials are missing
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