This is most likely a corrupted category record in the WordPress database.
First, back up your database. Then go to phpMyAdmin → your WordPress database → wp_terms and find the category by its existing slug. If the term is there but the name is blank or showing incorrectly, edit that row and put the correct category name back in.
Then check wp_term_taxonomy and make sure the same term_id has taxonomy set to category.After that, clear your WordPress/site cache and check Posts→ Categories again.
Do not delete and recreate the category yet, because existing posts may still be attached to that category. Repairing the existing database record is the safer approach.
I can’t quite picture what that looks like right now. Can you show me a screenshot of it? See: https://wordpress.org/support/forum-user-guide/block-editor/#adding-screenshots
@mhmda81, for some reason I don’t see your response. I tried what you suggested and it didn’t work.
Reading the others, it occurs to me that I don’t know if this makes a difference but, this is for the default product category in WooCommerce, not for a post. I am not near my computer to get a full screen view but this is taken with my phone:
https://snipboard.io/oTnsiZ.jpg.
On the desktop view the slug for fabric is visible. Fabric also shows in the category list when switching to a different category but the editing interface for the category to restore the name of Fabric remains absent.
It will be awhile before I am where I can access the database and, if still appropriate, I will try that at that time.
Thank you.
I recommend getting in touch with WooCommerce’s support about this via https://woocommerce.com/my-account/create-a-ticket/ if you have any of their paid WooCommerce products or https://wordpress.org/support/plugin/woocommerce/ if you do not.
