Do you really add Dead Sea salt, or did you mean Himalayan Sea salt?Interesting, I've never tried citric acid. I normally add dead sea salt for hardness and sugar for bubbles.
Dead Sea salt has so many minerals that it will make your soap a gooey, sweaty mess. All those minerals can also contribute to DOS. It is generally never used at all in making soap.
If you did use something labeled as “Dead Sea salt” without problems, then you probably have a mix that is mostly some other kind of salt, with a tiny sprinkling of Dead Sea salt for label appeal. I still wouldn’t use it.