Support › MB Custom Post Type › Has archive
When editing a Post Type, in the Advanced tab the checkbox: "Has archive" and the input "Custom archive slug" have no effect.
Please try to use the option Custom rewrite slug to change the archive slug. I will discuss this with the developer team to cover this case.
Custom rewrite slug
It still didn't work. I use custom slugs for the single pages and the archive. After the update, all my sites are having the same problem.
After adding the custom rewrite slug, you should go to Admin Dashboard > Settings > Permalinks > Save the current permalink again to make the custom slug work.
It worked. Is this a temporary solution?