Is it too late to report a missing CC?

I got accepted into UCSD and today, I realized that I attended a community college all the way back during summer 2016. I took arts and econ as GE’s mainly to fulfill my high school credits to graduate bc i couldn’t take those classes during the year. On the uc apps, i only mentioned the two colleges that i took my major preparation courses at and high school and thats it. Im terrified that my admission will get rescinded bc of this missing cc. I already emailed UCSD and explained my situation. While anxiously waiting for an answer from the office, I just want to ask if anyone has ever encountered a problem like this and how did it go for you?

It’s unlikely to cause you an issue. Especially with SD, which is much more lenient then the other UCs.