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Taylor Swift and Travis Kelce 's engagement news was so massive yesterday, they literally broke the internet ... or at least crashed Instagram for some users for a short time.

A Meta spokesperson tells TMZ ... IG was so overwhelmed with users yesterday reacting to the engagement post, some users -- not all -- were unable to access the app. So yeah, they freaking broke it. But, we're told the issue was resolved quickly and all is running smoothly now. Gallery Launch Gallery

We also hear ... Taylor's engagement post got the record for most reposts on Instagram by hitting more than 2M reposts in less than 24 hours!

The now iconic post also got more than 14 million likes in the first hour -- now at 30M likes and counting -- and has remain

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