After updating from 7.12 to 7.13 if you save new product without image you get blank page.
Must be just a simple bug. If you select image save will work.
Image is not required but at this moment if you don’t select image you get blank page on save.
yes, I am having the same problem, (1) when creating a new product, if there is no image will return the White page. (2) But when there is a image - the product will save, BUT when editing the product just created (though not changed any) - you still cannot save again, and will return the white page.
! Wait for the next new version 7.13.02