redirect post to post-1 in wordpress 4.4

I am having the same issue with 25+ posts redirecting to other posts with similar slugs, even if they are in different categories.

Example:
– http://www.site.com/some-category/some-post-3/
– http://www.site.com/different-category/some-post-2/

Both get redirected to:
– http://www.site.com/another-category/some-post/

I have found other people posting having the same issue, but I have found no fix yet, besides renaming the slugs to have no similarities.

Other Posts:

1. https://wordpress.org/support/topic/post-redirecting
2. https://wordpress.org/support/topic/2-posta-are-redirecting-to-another-post
3. https://wordpress.org/support/topic/redirect-post-to-post-1-in-wordpress-44
4. https://wordpress.org/support/topic/weird-redirect-error-happening-since-last-update