I just tried using an oembed field with the link provided by the OP and it seems to be working as expected. Does the video appear in the acf field in the admin after inserting the url in the oembed field?
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ACF PRO’s Flexible Content field allows you to create smaller pieces of UI and compose them into whole flexible patterns. In our latest article, we show how to use it to create swappable site sections and integrate it all in a theme.https://t.co/ZRocH8oJSp