Preset format suddenly won’t apply

I had three preset formats - “Title”, “Body”, “Jessica”. “Jessica” is the italic style of “Body”. Everything was fine until today, when suddenly “Body” wouldn’t apply (change to the defined format) after “Jessica”.

As a workaround I defined a new preset, “Body text”, and this works perfectly - I can toggle between “Title”, “Jessica” and “Body text” using the presets on a given passage of text. I can toggle between “Title” and “Jessica”, and even toggle between "Title” and “Body” - but not between “Body” and “Jessica”.

Anyone have an ideas, please?