slug rewrite error access

Hello,
congratulations for the plugin!
I’m trying to rewrite an entry type, in my case the slug that works with the theme of “listing”, and I’m getting on the field rewrite the word “coches”. It is replaced but the problem is that when I try to access direct url, if I put coches/ running, but if I put coches without the final slash bar is not working.
I tried it with other words in the singular and plural and all it has worked properly, but not coches. Why can this be happening?

Sorry for my English but I am using a translator.

Thanks in advance.

https://ww.wp.xz.cn/plugins/types/