These two videos were downloaded from wordpress.org. They display correctly when I view them on my laptop, iPad and iPhone SE.
In WordPress.org, when viewed on my iPad and iPhone, they appear to be broken. Other people have confirmed this.
The Verse video block came from: https://wordpress.org/support/article/verse-block/
The Video block came from https://wordpress.org/support/article/video-block/
It’s a known bug with WordPress Multi Site. Goes back a few years https://core.trac.wordpress.org/ticket/42560
A workaround was developed for make.wordpress.org
In response to