Some lines fade while savingRevit page to pdf

[Anonymous]

Hello!

I'm using Revit 2019  student version. I have trouble saving fron Revit to pdf. Some lines/groups of lines fade while saving to pdf. Revit shows page and all the lines correctly.  But in printing preview  some lines are already gone! so they are absent in pdf file saved from Revit. 

I've already tried to repair Revit and reinstalled it. 

I do need your assistance ASAP. 

[Anonymous]

Oh!! Such problem should not be faced.
Check your installed version. Revit experts will better explain the issue. Let's wait for their reply.

[Alan.johnson1970]

Sorry its not clear with your attached images as to which lines are faded / missing