Found the problem It was theme (Impreza) related (thank you @cjbj).
When the blog post category was created, it created a loop via the theme:
Related Posts:
- Best Way to Redirect Category to Page and Hide Category
- Catch 404 after changing permalink structure from /%postname%/ to /%category%/%postname%/
- Preventing index.php?category_name=something from redirecting
- Add forward slash on categories url (serve one version of a url)
- Multisite blog converting categories to subdomains
- Optimal way to redirect home page to category archive?
- Redirecting specific category posts to subdomain
- How to: 301 Redirect /category/ to /customname/
- How to? Redirect /category/sci-fi/ to /category/scifi/?
- Redirecting category link to first child post
- Redirect category to first available child post
- Redirect category to url with /category
- Changing permalink from /postname/ to category/postname/
- WordPress category page redirects in .htaccess not working
- Why do my categories redirect?
- WP didn’t redirect to canonical category URL
- Sub Categories Keep Redirecting to Pages With Same Slugs
- redirecting from a general category page to another specific one
- Redirect single article permalink to paginated category page
- Automatically redirect a page to a category that share the same slug
- How to display post in custom file not in archive file?
- Use blog as base for tags and categories
- Category link redirect to custom template page instead of index.php?
- Redirect depending on category chosen
- Need help with major category and permalink re-organization
- Redirect Problems with Archive Page and GET variables
- OK to redirect the root WordPress category slug?
- How to prevent WordPress from redirecting single page to prefixed category archive with same name?
- Category pages redirecting to tab on Posts page grid
- Default URL for category dropdown select option
- WordPress Category url redirects to subdomain
- Catch 404 after changing permalink structure from /%postname%/ to /%category%/%postname%/
- Paginations in Category Page Leads to Sample Pages
- htaccess redirect for all categories converted to tags now showing 404
- Page redirecting to category (IE only)
- Category Redirection Problem
- Force category choice before creating new post?
- How can I make post fields required in WordPress?
- How to remove category from wordpress url?
- How to create a custom url for a category [closed]
- How to get primary category name in WordPress new version
- Use tag interface for hierarchical taxonomy?
- How can I select a primary category?
- How to change the category in URL for posts in multiple categories?
- Rearranging posts based on categories
- How to create category index table out of wordpress site or on other website?
- Custom Nav Walker menu – Display category count
- List of subcategories with featured image
- Redirecting specific category to subdomain
- Get a list of commas separated categories inside a loop
- How to get Total Post In a Selceted category
- How to make all posts in a category sticky?
- WordPress: category page not for post’s
- Pagination on child category returns 404
- Advanced Custom Fields: Using category as a rule, before publishing new post?
- Save metabox checkboxes values to custom content type
- WordPress check if user is logged in from non wordpress page
- Automatically assign posts by author to a specific category
- “Sticky” posts for each category (archive.php)
- How to disable access to category pages
- How do I remove the tags from wp_list_categories?
- Alphabetizing Posts in a Category Page?
- Show pages and articles in category search result
- How to group the loop posts in a particular by author?
- How to display get_the_category of post showing only CHILD of category “X”
- Get ID of current taxonomy in register_rest_field
- Add Icons to the Product Category Sidebar Widget WooCommerce
- Custom page for WooCommerce’s /product-category/
- Add Class While on Current Post; wp_list_categories
- get all sub categories without specify any category
- How to use wp_category_checklist()?
- Get the name an the description of a link category
- How to link 2 categories (Sync)
- Display child categories in WooCommerce
- WooCommerce duplicate sub categories and product slugs
- How to make a Thumbnails Mosaic
- wp_parse_args & category parameter
- Specifying multiple categories in URL (permalink)?
- Check child/parent categories if exists
- How to run select query of post with category and tags for API?
- Change existing taxonomy settings when using custom taxonomy
- Enter a variable in the ‘category_name’ parameter
- WordPress Genesis not excluding category from blog
- How to show only one category in breadcrumb navigation
- List Sub-Categories of a Parent Category
- add text to the top of category page
- If statement for catergories
- Rewrite a category
- Query posts from category based on a filter most favorited
- How do I call posts with a certain tag?
- Trying to only display 1 category using get_posts
- How to display singular form of category name?
- Select posts by name and category per REST API
- Categories for each brands
- Custom User-Created RSS Feed
- WordPress/Woocommerce only show category in shop to a single role
- How to create a page which lists all categories with its ratings [closed]
- Permalinks: display just one kind of wp category in the posts url
- Get value of custom field in category admin
- Prevent posts assigned to sub-categories being accessible also through top category URL

