So I'm solo playing lvl 34 prison of elders (The Forever Eater). I'm useing a (Non-Elemental) Cocytus SR4 scout rifle, a (Solar) Thesan FR4 fusion rifle, and Sleeper Simulant. I'm posting a 1 min video for reference. At about 15 seconds my scout rifle fluid changes to void purple from the neutral blue color and my fusion rifle changes from solar orange to void purple. It's stays that way until 40 seconds in when I destroy Qodron's detaining bubble. I just thought this was rather strange because I have never seen it before. There was also no way to tell from my gameplay if the element change was effecting anything as it should. Anyone else have similar post-ttk experiences? Bungie bug?