On a macbook pro (model 2017). macOS 10.14.1
GPU Radeon Pro 560/Intel HD Graphics 630
Lens Studio v1.7
None of the textures are recognized (they are within your resolution limits).
Tested with a free model from turbosquid with textures saved as .jpg
When importing obj files from google poly the .mtl file is not recognized.
Thanks in advance for checking and debugging on your end.