Hello,
To restore your tags, you will need to reset your local changes because tags are handled as a component of the card itself. It is not possible to update tags without updating the card data. Think of a tag as just another field on the card.
I recommend protecting any fields where you have personal annotations. We usually recommend to have annotations in the Lecture Notes or Missed Questions fields. After making sure these fields are protected, reset local changes.
Protect fields tutorial: How to Manage Protected Fields
Reset local changes tutorial: How to Reset Local Changes
AnkiHub does not interfere with your personal decks or custom subdecks; it will keep the cards in their assigned decks.
Once you are finished, your cards and tags will be fully up to date. Please note that if you have annotations in fields like Text or Extra, you will lose them, as AnkiHub must overwrite those fields to keep the content current.
Let me know if you need help with anything else! 