Nope, not fixed. Just updated a minute ago to the 2/18/2021 update. ESSP still corrupts the data on the second entry. I imported my ESSP and RSU data from my broker through TurboTax. Editing the first entry works fine, editing the second entry intermingles the data from the first entry, beginning at the "Ok, we just need a few more details". Once you click 'continue' on that screen, the next screen shows data from your first transaction, and there's no recovery. I'm stuck until a fix is released. I've used TurboTax for two decades. In a few days I'm going to try another program.
