Support » Fixing WordPress » thumbnails not showing when previewing page

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  • Same problem here. This is very frustrating. Why add this _thumbnail_id=-1 in preview URL all of a sudden? I freaked out seeing the page like that.

    I thought the problem was about wp-includes/post.php and I replaced it with the old one but that didn’t do the trick. Please fix this ASAP

    Edit: I just found out this is about wp-includes/revision.php and replacing it with the old (4.5.3) file did the trick. I still want to use the new one though after this is sorted out.

    • This reply was modified 3 years, 4 months ago by mehmeh.

    Thanks for the help. Looks like it’ll have to do for now.
    I wonder if there’s a section here on reporting bugs in the latest update?

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