I don't play my titan often so this is a pretty late report, but i bought the lambent luster ornament set for titan during solstice (the 6k bright dust bundle) & the chest only lit up sometimes when i first got it & now doesn't light up at all. I've tried different subclasses, & different supers on prismatic, & it's the only ornament from the set that doesn't work. iirc, it lit up with some of the light subclasses originally, in case that helps at all. i've tried restarting the game & that didn't change anything unfortunately! pls save me T.T 🙏