[catabur]

Quest Indicators stay when NPCs go to sleep.

[Bjarn]

WORKING AS INTENDED, THE FUTURE IS NOW

[Neus]

This has been corrected.

[Ranylyn]

Possibly related: I've noticed this happens in Dormeho (With the "My Master, a Painter" quest) during Beast Raids as well. I simply never reported it until now since it's so minor and actually kind of useful to remember exactly where the tile you can't walk on is while the NPC is missing.