SEO URL's not working as expected... any ideas?

Hi guys,

I've enabled my SEO URL's - it's for some reason been one of the last modification I've looked into.
.htaccess is running fine, even the SEO URLs work.. but not properly

The URLS still display like previous:
This is me trying to access a subcategory with seo keyword: injectors
https://www.part-box.com/index.php?rout ... =00_94_110

BUT if follow my store through to the end product... then they work.
https://www.part-box.com/injectors/17U- ... -injectors

I can then backtrace, using the below path from the product page: Home > Fuel Injectors


Then it displays! Why didn't it display this when accessing the injector category from my store front menu?
https://www.part-box.com/injectors

Why aren't my SEO Urls working direct from my store front? I'm running OpenCart 2.0.1.1 and Journal 2.6.9
I'm not having any other issues

P.S - I've disabled them for now, so above links won't be live examples

Any ideas?
Sam

I think your problem come from your theme.
That is very strange path of category have value 00
Try contact developer journal theme.