Insertion order controls the due numbers that are assigned when cards are added. If you scroll down further in the deck options of v3, you’ll find a display order section that controls the order cards are shown in.
Setting “New card gather order” to “Ascending position” or “New card sort order” to “Order gathered” produces the same result. Newest card appears first.
I’ve rebooted anki several times and checked the database. I’m certain that it didn’t use to do that up until recently. The only significant thing I’ve done is swapping cards from another deck to this one.
At this point, I feel like anki is gaslighting me. Besides, this is a new feature of v3 right? The same issue happens on v2.
edit:
Looking at the due date column, I can see that the order doesn’t match up with the created order. Anki seems to follow the due date order and not the created date order (even though specified in the settings!) How does that even happen? What am I supposed to do?
This is what happens when sorting by due date within the browser. What a mess. I am certain this is something that started recently. As you can see, all those have the due order in pair with another for some reason.
Maybe you created these notes on April 29, and then later added a second card type on May 12?
The deck options screen does point out that sorting is done by due number, which only typically is the same as creation date.
This note type is very old, I’ve been doing it for years. I only sporadically tweak some fonts, but never add/remove a card type, that’s pretty much set in stone at this point.
Today I started to suspend all old cards in order to circumvent the issue. What I ultimately did is sort all new cards by created date on the browser and then use the “reposition” function to reorder everything.
I have no idea why after all these years it suddenly changed behaviour.
My guess is you changed the insertion order to random and then back to ordered at one point. That will cause the cards in each deck to be repositioned based on their creation date. The ordering is specific to each deck, and if you move cards from one deck into another, they may end up being interleaved.