Sometimes 𝕏 hides or blocks certain tweets in published threads.

They appear like this:

This is not Typefully’s fault: there's no distinction on Twitter between tweets published with Typefully or with official Twitter clients, and this has been confirmed to us by 𝕏 support.

𝕏 flags some accounts or tweets based on keywords, links, images, or hashtags, and this makes some tweets look "unavailable".

This problem usually goes away on its own after a few hours, and Twitter support has confirmed to us that this problem is not related to Typefully in any way.