I created a custom review session for one of my desks and almost all my cards show the same schedule on the answer buttons.
Why is that?
Filter: prop:due<=10,
Cards selected by: Order due
No.
They are in the same deck.
No.
You don’t sync with AnkiWeb, so I can’t look at your collection for you.
So far, we only know that the cards are potentially overdue, but it matters a lot what state the cards are in. Give us a screenshot of the Card Info for one of these cards, include the top section and the revlog (but not the graph). [Since you’re on a small screen – you’ll need to turn it to landscape to get all the columns in the revlog section.]
Since reschedule-based-on is enabled, the cards are following their ordinary deck Options for scheduling, so include screenshots of that with your steps, FSRS, Advanced (if you’ve modified anything there) – and your FSRS parameters as text.
Yes, if you set your maximum interval to 1d, all kinds of things would go wrong.