Broken valve spring dampers?

Working on a 5.9 magnum, RHS Indy X heads. .525 lift, 226 @ .050 duration, 112 LSA.

Springs are newer Hughes 1110. Lifters were older and made noise at start up. Found a piece of #2 intake valve damper in the lifter valley changing out lifters and intake. What causes this? Should I replace? Remove and run?

Thanks!