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i have just published an iOs App with 3D objects

Sometimes there is an error reported by the logs of Xcode named bind -- Warning: Material parameter 'u_specularColor' not found in effect 'shaders/textured-unlit.vert;shaders/textured-unlit.frag;'.

Does anyone had this problem before?

Is this problem coming from 3D object (i can send you a link), we never had error message from Wikitude 3D Encoder with theses models ?

Could it come from the SDK ?

Thank you in advance for your help

Kind regards

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