Can't underline words when importing a text

I want learners to exchange words underlined for exercise, but when the text is saved, the underlines disappear.

Hi there,

I tried this and it seems to be working properly. Is anyone else having this problem?

Did you underline words in the text edition? or in exercise edition?

I was using the underline function in the Exercises – is this where you were trying to underline the text?

No, I tried to underline words in the Text,but now get your point to edit in the Exercises. Thanks!