@EJ_Byun - I had something similar to this happen to me recently on a hero image. For some reason, it wouldn’t center even though all of my elements were setup correctly using Flexbox. I messaged support, and the response was just to do something similar to this:
https://www.loom.com/share/20bee432b562482da3fe2cc498e4b6ee
Not sure how much this helps on the live version as I can’t test, but hopefully it solves your problem.