Numbered Lists with soft breaks reset again and again some format details on their own

Context:

While preparing a text (intended for a different video), that contains a numbered list, it happens to me again and again, that format details of that list suddenly resetted themself on their own.

The text in the video isn't important for you (except the manually typed sentence at the end); you must watch only what happens to the format itself of the numbered list: it's third entry suddenly "breaks".

Similar things has happen before repeatedly also to the second list entry. The video shows the moment when it affects the third entry.