I'm unsure if this is a bug or if it's been changed, but usually Shinwa quests reset at midnight rather than every 24 hours. Currently, mine has not reset and says that I still have 30 minutes, since last night I completed her quests at around 8:45 EST. Is this happening to anyone else? I didn't want to report it in the bugs forum if it was a site update that I somehow missed.

It seems to have happened to everyone. link I did mine at 11.30 PM Subeta time yesterday so didn't bother waiting. : P

Excellent, not just me then. Thank you :)