Emphasis style not showing on upper toolbar

When writing in BBC script mode I’m able to highlight a word and then to to the style box, choose “emphasis” and make the text italic. That works fine, as it should,
However I noticed that if I select or hover over the stylized word, the style box still says “no style.”
So I opened the doc on my Mac and see that the word “emphasis” does show up in that box on the Mac version.

Small thing but I thought I’d point out the discrepancy.