Can't see friends who liked my post

Hello,

17 people have liked a recent post of mine, and I know that almost all of them are friends with me on Facebook. But I can only see one of their names and “16 others.” I’m curious who those others are. I thought that they should only be invisible if they were not my Facebook friends; is this a glitch? Is it fixable? Any help would be appreciated!

Here is a link to the post: https://www.thegreatbetween.com/wrestling-underwater-with-a-giant-blob/

Thanks very much,
Katie

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