I believe that title is the actual address new tab page used. Every time I started new tab it will show loading from that address.
As for the bug I never encounter it, but I suggest submit a bug report via Send Feedback if you haven't.
EDIT: There is a time in my case where the new tab didn't load, so I deleted the cookie and cache on ntp.msn.com from the setting page then it worked. I not sure if this related to your case, but I think worth a try.