Often, when category names are changed (even with a difference of just one character), the system recognizes this as a new category. This can lead to unwanted duplicates being created. For example, if you had a category labelled “T-shirts,” changing the name to “T-Shirts,” (with a capitalised ‘S’) it would leave you with two categories. One called “T-shirts” and another called “T-Shirts”. Because of this, it is best to avoid making such changes.
Instead, you could hide the original category (“[Original Name]”) and create a new category labelled “[New Name],” transferring all the relevant products. However, in order for the app to run smoothly, it is best to avoid making any manual changes as far as possible.