Incorrect image attached to post

In the ActivityPub plugin settings, I have the number of media attachments set to one, and so far it has always been the featured image set for the post.

This time, in addition to images, I also used a video in the post, and the first video file included in the post became the only attachment shown in the Fediverse, and the featured image was ignored. Not only the specially prepared thumbnail can’t be seen from the Fediverse, but instead there is a completely random video.

Can I somehow force the ActivityPub plugin to always use the featured image as an attachment?

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