Hello,

If you can provide wp admin access in a private comment, we get a coming soon page.

Unless we inspect the page in question we cannot give a diagnostic of the problem. However,  if you import demo data, try replacing hero demo images for ALL portfolio items with images coming from your domain/media library, on some sites the webgl will complain about images coming from a different domain due to a enforced CORS policy.

You can change the hero image in portfolio item options and you can find the original demo images there (imported)

If you still have issues send us wp admin access in a private comment so we can verify.