[Bug Fixed]
Daily event 9. 25, 27, 28 can't be unlocked before this update.
In case you need some guide for how to get them, check this spoiler:
Daily event 9 on day 9-10, midnight, outside barrack
Daily event 25 on day 17-18, morning, cafeteria
Daily event 27 on day 11-12, evening, control room
Daily event 28 on day 15-17, evening, coast
Cheers :)