sims 4 holidays and calendar glitch

Ever since the new update ive been having issues with my sims calendar and holidays not showing up. I do use mods but I updated them when the new update came out. My holidays won't show up, the preset ones like winterfest and harvestfest do not show up when I load my household and when I try to create my own holidays, I click the checkmark but no holiday shows up on the calendar. 

I've removed all my mods and re-loaded the game but I still had the same issues where holidays wouldn't load and I couldn't create my own. I've tried multiple times to repair the game through origin. I've done a factory reset of my game and when I put the game saves back in, I experience the same issue with the calendar and holidays. The seasons and weather still work. I still get other events on my calendar like festivals and afterschool activities but no holidays. 

I've read many threads and tried the common troubleshooting methods but I still have the same issue and I don't know what to do. I really don't want to move my household to a new save because I've already customized most of the worlds in my current save and I'd hate to have to do it again.