If you’re trying to see the comments on a Facebook pag –, particularly news pages — and cannot, you are not alone. A recent Facebook glitch is preventing users from seeing any comments from other users. If you are viewing in a web browser, it seems there is no current workaround.
However, if you are viewing from the app, you should be able to change the comments from most relevant to newest. That will allow you to see all comments. Ironically, choosing all comments will not allow you to see any comments. There is no response or fix from Facebook yet.
Update: It appears the issue has been resolved.