It is possible that there is something screwed up in your project.
To find out, download the free copy of Cyberlink's Power2Go and try burning the bluray. The trial has all the nice features of the premium version for about 15 days so you should have the capability to burn the blu ray. Since this is a free program, it is permissible to post the link to it. You can remove it after this test.
If it burns, then we have to look further into the capabilities of Roxio's burner. If it doesn't, there may be issues with your discs, your burner, your computer, etc.