I thought I noticed this happen yesterday, but it did it again today so now I'm absolutely sure. Yesterday I did Quentins Quest early at night and then they reset back to zero midway through the day. I did them again last night and see that they've reset back to zero again. Anyone else experiencing this?

Hm, mine did reset yesterday. I did them right after reset, and then when I woke up [at 11 PM subeta time] I noticed that they were reset.

They still say 15/15 right now though, so they did not reset for me today, despite doing them right after reset, again.

Keith reset the quentin quests yesterday to test out the new quest rewards

okay, but mine reset again today too.

Hmm then I'm not too sure. I did mine early this morning and they haven't been reset still.

Keith was resetting the quest. This is not a bug.