Sharing to Sketfab crashed

After the latest updating (yesterday version) I cannot share to Sketfab. It generates “…corrupted model” red message. The same model updated manualy (obj+mtl+jpg) on Skedtfab web page gone well.

Hi JG.UI,
if you will create a new model in that project, is it the same?
Do you mean this error:


Do you have 8k texture on your model? Are you trying to do free upload?