Select the card, and then click Remove Label to select the label you want to delete.

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Empty label = only label, no card.

Empty audio picture = the card has been deleted, but the picture audio still exists.

PC-side main interface tool → check the database.

Click to delete empty labels, empty pictures, empty audio, etc.

Note: If the tag still exists in the add column after deletion, restart ANKI after confirming that the tag of the target card has been deleted.