After successfully completing a quest echo and exiting via a portal, the chest to the right is always empty. This only happens with quest echoes, not normal echoes.
It is not a filter problem, tried with the toggle to disable filters and tried to remove all filters manually, still every quest echo chest is empty.
There was a similar thread:
https://forum.lastepoch.com/t/offline-quest-echo-reward-chest-is-empty/57119/2
And also one on Steam: