I did Garden Of Salvation with my friends and the progress for the 'Shade in the Garden' and 'Photosynthesis' triumphs didn't registered for me. Some of my friends claimed that they got progress on the triumphs, but I did not. In the video you can se how everyone is running Solar subclass for the 'Photosynthesis' triumph (You can se the glow on their armors, and when I inspected them to double check they were running the subclass).