When single word set to italic, the reset sentence will always italic and cant set back;

In above pic, the docuemt is set to italic, and if I enter, and start writting from a new sentence, the world like react is also italic
I can click the ‘/‘ to set it normal temporary, if I continue to writing it will quick back to italic

Can you tell us what version of Agenda you are using?

11.1(151) - Mac App Store,and I use Chinese version

We have quite a few changes in the upcoming 11.2 update for Mac, once it is out, could you let us know whether this aspect is fixed or continues to be an issue?

fixed, thanks for your attention