I had the same problem with About Us…I found a odd way to fix it just change it to something random and then publish your site. After it’s published go back and change it back to “About Us” then it works. I had this issue with a few things keep their template defaults text. Been doing the same thing to correct it and it seems to keep working out. Sorry not much help but might work for you.

For the projects page. You go to the dashboard and click projects and there you can add all the content you need. Once that’s done you go to customize, home sections, projects then then add the project.

Not sure if you have seen this link but this has been very helpful to me…

http://luzuk.com/demo/nirman-construction/documentation/index.html