As an avid user of Discover credit cards, I have always relied on the cashback calendar to earn rewards on my purchases. However, recently I encountered an issue where the cashback calendar was not working, and I was unable to earn rewards on my purchases. After some research and trial and error, I was able to fix the issue and get back to earning rewards. In this article, I will share my personal experience and provide a guide to fixing the issue of Discover cashback calendar not working.