I'm pretty sure I didn't find all the secrets this game had but I did get two endings! The office has many colorful co-workers bothering you through the week, and email can get busy so you better be reading through them asap. Audio fits, and managing your tasks is fun! The game fits the theme in my opinion well too.
I did encounter the mentioned bug when you read your email at 5:00 but for me it didn't break my game, and I was able to continue the next day without problems.
Good job!!!