Fixing Sync Issues

Occasionally deck updates go wrong: cards not updating, duplicate cards, or missing or out-of-order tags. Work through these in order; they fix the vast majority of problems:

1. Update the deck — AnkiCollab → Update Decks from the main screen
2. Check you're signed in — the AnkiCollab menu shows Login when you're signed out. AnkiCollab only updates the deck while you're signed in, so sign in if it does.
3. Check Malleus isn't coming from two places — if AnkiHub is still installed and updating Malleus too, the two clash. Open Tools → Malleus Deck Setup (AnkiCollab)… and it stops AnkiHub updating Malleus for you (see Switching from AnkiHub).
4. Clear unused tags — in the Browser, Notes → Clear Unused Tags
5. Check the database — Tools → Check Database, then Check Media, then Empty Cards
6. Remove deleted notes — when the maintainers remove notes from the deck, the next update shows Notes Removed. Click Delete Notes to remove them, or Review in Browser to look first and delete them from there.

Out of sync with your phone after switching from AnkiHub?

The first sync on each other device after switching asks whether to upload or download. Choose Download. See Switching from AnkiHub.

Still stuck? Ask in our Discord, or AnkiCollab's own community (AnkiCollab → Join Community (Discord)).