Originally, I posted the comment above in another forum. BraveStoner asked me a question about why I added an approach to the flight plan during my flight.
Reason: While some of the waypoints were plotted to KSFO from the msfs map, ATC assigned runway 28R with EEDDY transition (if I remember correctly). So I had to add that approach in order to get that waypoints into the flight plan and also with hopes it would populate NavRad with the proper ils frequency. I ended up having to lookup the ils frequency (google) and manually adding it to the NavRad.
It’s worth mentioning, i read forum posts about the plane U-turns after adding/activating approach to the flight plan. Seems that some people have the same issue and others have no issues. Nonetheless, most everyone agrees the premium edition 787 Dreamliner HAS bugs. I should note, since I am on Xbox I am not using any mods.
It might also be concluded Xbox and PC pilots are experiencing different issues. I will be back to PC later today so I will share any info about the navigation errors if I come across it for the 787.