unfurl fails randomly - all links are just links to forum posts?

[TUG]

i do a "top 5 most popular threads" post each month with links to....the top 5 most popular threads for the month.

each time only 2 or 3 of the links actually unfurl? im pretty baffled by this and have verified:

1. the url unfurl code is identical on all the links.
2. all the links are valid and simply go to existing threads on the same forum
3. there are no errors in the unfurl checker


can see the live page here, for this month only 2 of the 5 links "unfurled". Certainly not a...

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unfurl fails randomly - all links are just links to forum posts?

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