In the past I was not able to burn Blu-ray Disks. After some research on the Internet, I found a solution that works for me.
Create a Blu-ray Image Under the option "Output". Select Blu-ray Image and also select the destination to create the Image file and click on Build.
It will create a Blu-ray Image with the extension. iso. To burn a Blu-ray Disk select Blu-ray Disc under "Output" Option. Under "Source" Option
select Disk Image instead of Current Project. Select the Destination where you have put the .iso image. Click on Build and it will burn a
Blu-ray Disk. This link also has a tutorial. https://youtu.be/ULYmSdv3FkU