Source formatting dong appear as they are in the target

Hi

I am working with Studio 2017. In the Editor some bold segments (all the segment) dont appear as bold in the target. Also, It happens that some parts of a segment are bold or italic but while I place the corresponding tags in the target in Studio, in the target file I generate these do not appear as they should, i.e. bold or italic.

 

Can anyone please help?

Thanks.

 

Ali