Hello,
Just to make sure I understand the issue:
- Did you rename a tag from the AnKing Step Deck? This is not recommended. If you want a custom tag system, you should create new tags for personal use and protect them so they do not get overwritten: How to Protect Personal Tags from being Overwritten - #2
- Did duplicated decks appear afterward? Please send a screenshot so I can better understand what you are seeing.
Could you please explain this in more detail? What new cards, what do you mean by “new numbered ones,” and which tags did you delete?
If you think you messed anything up, you can simply reset your local changes: How to Reset Local Changes. This will ensure you are not missing any cards or tags. However, if you have duplicates, this process will not delete them. You can identify and delete those later.