If you make a custom recipe through Json in a datapack and set the max_stack_size of the result item to less than its count property, the item will not be craftable.

Steps to reproduce :

1. Load the datapack provided in this ticket into a save, this datapack modify the diamond block to diamond recipe to give diamonds stackable only up to 8 items with the new max_stack_size components introduced in the 24w12a snapshot.
2. Try to craft a diamond block into 9 diamonds.

Expected result : The output of the crafting is 9 diamonds, with the components max_stack_size set to 8.

Observed result : nothing is showed in the result of the crafting recipe.