Just did it myself 3 hours ago. (Destiny)

by DEEP_NNN, Tuesday, April 04, 2017, 21:08 (2881 days ago) @ CyberKN

Starting from a wipe at Templar.

Climb back up cliff to beginning.

First unopened chest is gone.

Second unopened chest in Kabr's cave is still there.

I will try a restart to see if both chests are there.