Anki automatically making this super deck

Hello,
I have an anki deck on psychology and it keeps merging all separate decks into one mega psychology deck and I’m wondering how I can separate them into separate decks.This happened before and I rest my anki history to a previous day but it’s happened again!!

How are you naming the decks? If you name them starting with psychology::, they will all be nested under that deck. Getting Started - Anki Manual

To separate them you can –

  • Rename them to remove the psychology:: from the front.
  • Drag-drop them on the main Decks screen.
  • In Browse, switch the left sidebar to the Selection tool and drag-drop them there.

Since you’ve seen some unexpected changes, it’s probably worth running Tools > Check Database as well.