I'm experiencing this same problem in MS Publisher 2016. (Was able to get it to work in Word 2016 no problem using the existing troubleshooting section).
I've looked into this and unfortunately it looks like MS Publisher 2016 doesn't support OT features. The most direct evidence I found was a mod on the Microsoft support forums saying, in 2019, that the only MS Office app that supports OT features is Word.
I don't have MS Publisher, but you could try downloading Vollkorn, a font with a wide range of OT features, and see if that works. If it does, then I can look into what it does differently to Dicier (if anything).