If you play a practice game once, with some of the decks checked; finish the game; and then try to practice again (by clicking the practice page button on the finishedPractice page)..... then you get a bug: only the decks you selected in the previous round is available on the custom practice page.
If you play a practice game once, with some of the decks checked; finish the game; and then try to practice again (by clicking the practice page button on the finishedPractice page)..... then you get a bug: only the decks you selected in the previous round is available on the custom practice page.