Actually, it works with the deck, but if I clone a preset and click “Optimize” without clicking “Save” at the top, it uses cards from the filtered deck that has cards in it (it is also the first filtered deck in the list, and I don’t use the other ones) and says:
Only 458 reviews were found. You must have at least 1000 reviews to generate custom weights.
Evaluate still works, apparently that’s enough for it
The search query finds the cards that are in the filtered deck. If the filtered deck is empty, it shows “Error: 500: Insufficient review history to perform this operation”.