Category names not displaying properly

-- HikaShop version -- : 4.4.1
-- Joomla version -- : 3.9.25
-- PHP version -- : 7.4.12
-- Browser(s) name and version -- : Firefox Mac 78.7.1

I imported a spreadsheet of products and I created columns for "parent_category" and "categories". The import was successful, and it created categories A,B,C,D,E,F,G,H and J. Each of those categories has subcategories named like "A1, A2, A3, etc."
The only category with more than ten subcategories is J. That category followed the same naming convention in the spreadsheet, but Hikashop admin pages do not display those names properly in the sidebar category tree, or in the product editing page, or in the category listing. On many of the categories it drops the J from the start and just shows a number instead of "J1, J2, J3, etc." (see the attached image).

If I view the categories table in PHPMyAdmin, the category_name field is correct.

I learned that these are language constants defined in en-GB.ini. It seems funny that Hikashop is parsing category names where a user is expecting to simply enter their own data. I entered overrides for those constants. For now it seems to be working. I will report back if there are complications.