I WANT TO STATE THAT I AM NOT THE ONE HAVING THIS ISSUE. Two friends of mine have consistently had this issue themselves despite having reinstalled and checking file integrity. I am posting here for them since neither of them have an account.
They have only recently switched from the live to the experimental branch. When they finish day three, they are met with the "thank you for playing Smith's campaign so far" message that was implemented before day 4 was available.
I have attached one of my friends' log file.
-Switch from Live to Experimental
-Finish Smith Day Three