I am running into the issue of product details page with the default placeholder image.
I have changed the placeholder in the 4 sections available under: Stores > Configuration > Catalog > Catalog > Placeholder images.
I have flushed the cache, removed static files, redeployed static content. Nothing. My custom placeholder image is applied everywhere throughout the site, except on the product details page.
Am I missing something? This should be part of the settings I have already changed.