Permalink update problem

Hello,

I’m running a website on which permalinks are set as “post name” I had an article with the permalink like : “Potatoe”

I then published another article with permalink “Apple”

After publishing, I changed the permalink of the first article from “Potatoe” to “Coconut” and the second article from “Apple” to “Potatoe”.

Now, when I click on the second article which now has the “Potatoe” permalink (which was the permalink first used by the fist article) , it’s loading the first article who used the “Potatoe” permalink first and now has “Coconut” permalink.

So basically, when I click anywhere (on the homepage or from category) on the second article’s link, which is now :

https://www.sitename.com/potatoe

It’s redirecting automatically to https://www.sitename.com/coconut and loading the first article…

I tried updating the permalink structure in WordPress settings with no luck…

Note that if I update the second article’s permalink from “Potatoe” to “Potatoe1” or anything different than “Potatoe”, it’s now loading the correct article…

What’s wrong ?

I tried deactivating every add on, changed my theme… no fix.

Is this a bug from the new version of WordPress ?

Thank you !