All of these models imported into Blender 2.93.2 without any issues using either the included native Blender project file or the .FBX file. All meshes were flawless with no flipped normals or other issues. Textures were really good, although I had to re-size them from 4096x4096 to 2048x2048 and convert them into .png files. Minor issues: In Blender some of the models which were imported from the authors .FBX files included what appeared to be Vray materials that were not used and I had to delete those and guess which of the materials shown were actually used by the mesh. Some models included AO and Roughness textures, while others did not. Recommendation to author: Delete unused materials from the project files and ensure AO and Roughness textures are provided for all of the models in this package. Scale for all models was real world. The resulting model versions imported into Trainz Railroad Simulator 2019 (TRS19) without any problems and really looked great. I have purchased a number of models from this author and all have been excellent with few to no issues. I would also like to mention here that the author is highly responsive to any support emails sent to him and usually fixes any issues brought to his attention the same day. Overall, except for the minor issues that I mentioned above which were not hard to fix, I was very pleased with the high quality of these models and their finished appearance. Highly recommended!