Before upgrading it to 8.1, it was working fine. In Between 8.1 and 8.2, I never tried saving the data in Editable Text webpart.
Few months back, I upgraded from 8.1 to 8.2.
Preview Mode... please refer the screenshot. I can insert and update the text under header (OUR ORGANISATION, COMMERCIAL STUFF etc)
From Page Mode, I am not able to save the data added to Editable text.
For reference, please visit http://dev.takeachallenge.org/home