This shows "Showing 0 active cards, of 10 total"

While this corresponding front page shows "11 cards in Multiverse " and the cardlist verifies that about half of them are active.

(No images yet, but will provide if the error cannot be reproduced, though this comment suggests it does not only occur for me. Really the image would not look different from a visual spoiler page for a set without active cards anyway.)

Yeah; concur; I also see at this time that the set has at least one active card, but the visual spoiler says not.

I resolved the issue by toggling the use of "Active" status in the card set.

Keeping the bug report open since the underlying software issue has not been resolved.

UPDATE: The aforementioned toggling of the use of "Active" status in the card set is just a temporary fix. It eventually returns to 0 active out of 10 cards - no matter how many cards total there are in the set.