just a try, i dunno have a clue ...

code/Common/DefaultLogger.cpp

@@ -107,7 +107,7 @@ LogStream* LogStream::createDefaultStream(aiDefaultLogStream    streams,
         return nullptr;
 #endif
 
-        // Platform-independent default streams
+    // Platform-independent default streams
     case aiDefaultLogStream_STDERR:
         return new StdOStreamLogStream(std::cerr);
     case aiDefaultLogStream_STDOUT:
@@ -121,7 +121,7 @@ LogStream* LogStream::createDefaultStream(aiDefaultLogStream    streams,
     };
 
     // For compilers without dead code path detection
-    return NULL;
+    return nullptr;
 }
 
 // ----------------------------------------------------------------------------------

code/Material/MaterialSystem.cpp

@@ -471,12 +471,12 @@ aiReturn aiMaterial::AddBinaryProperty (const void* pInput,
     aiPropertyTypeInfo pType
     )
 {
-    ai_assert( pInput != NULL );
-    ai_assert( pKey != NULL );
+    ai_assert( pInput != nullptr );
+	ai_assert(pKey != nullptr );
     ai_assert( 0 != pSizeInBytes );
 
     if ( 0 == pSizeInBytes ) {
-
+		return AI_FAILURE;
     }
 
     // first search the list whether there is already an entry with this key

code/PostProcessing/ValidateDataStructure.cpp

@@ -603,15 +603,18 @@ void ValidateDSProcess::SearchForInvalidTextures(const aiMaterial* pMaterial,
         ReportError("%s #%i is set, but there are only %i %s textures",
             szType,iIndex,iNumIndices,szType);
     }
-    if (!iNumIndices)return;
+	if (!iNumIndices) {
+		return;
+	}
     std::vector<aiTextureMapping> mappings(iNumIndices);
 
     // Now check whether all UV indices are valid ...
     bool bNoSpecified = true;
-    for (unsigned int i = 0; i < pMaterial->mNumProperties;++i)
-    {
+    for (unsigned int i = 0; i < pMaterial->mNumProperties;++i) {
         aiMaterialProperty* prop = pMaterial->mProperties[i];
-        if (prop->mSemantic != type)continue;
+		if (prop->mSemantic != type) {
+			continue;
+		}
 
         if ((int)prop->mIndex >= iNumIndices)
         {

code/glTF2/glTF2Importer.cpp

@@ -200,6 +200,9 @@ inline void SetMaterialTextureProperty(std::vector<int> &embeddedTexIdxs, Asset
 			uri.length = 1 + ASSIMP_itoa10(uri.data + 1, MAXLEN - 1, texIdx);
 		}
 
+        mat->AddProperty(&uri, AI_MATKEY_TEXTURE(texType, texSlot));
+		mat->AddProperty(&prop.texCoord, 1, _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE, texType, texSlot);
+
 		if (prop.textureTransformSupported) {
 			aiUVTransform transform;
 			transform.mTranslation.x = prop.TextureTransformExt_t.offset[0];
@@ -210,9 +213,6 @@ inline void SetMaterialTextureProperty(std::vector<int> &embeddedTexIdxs, Asset
 			mat->AddProperty(&transform, 1, _AI_MATKEY_UVTRANSFORM_BASE, texType, texSlot);
 		}
 
-		mat->AddProperty(&uri, AI_MATKEY_TEXTURE(texType, texSlot));
-		mat->AddProperty(&prop.texCoord, 1, _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE, texType, texSlot);
-
 		if (prop.texture->sampler) {
 			Ref<Sampler> sampler = prop.texture->sampler;