So I completed the 7 Trials wins yesterday on my titan and was going to confirm the Endless Magnificent Triumph (among others), which tracts for all 3 characters at the same time (thanks the gods for that). After my 11th win (had a few wins prior to the last team I was in but helped the last person get his 7) I went to confirm the triumph in the menu and saw that the Endless Magnificent Triumph had a green mark on the warlock and hunter but not on the titan, which I did the Trials matches on. But since it was late I thought it might be that I needed to restart the game or it might complete after a few minutes/ hours, but as I logged on today, 12 hours later, the triumph had still not been completed on my titan. The only thing 'different' with the titan was that I had the universal ornament on the greaves as I got the wins/ completion check marked, though the armor piece has the 'completed' green box on them (and yes all the armor pieces has that green box, checked again just to be sure). (Edit: Added a video showing the armor is completed and the triumph isn't completed)