This is an issue I've noticed over the past two weeks or so.
When I go into the "About" section on my profile, the edits often don't save when I... click the save button.
This occurs with embedded images and text sometimes, and occurs with the good old "waifu" section without fail every time I've tried. I haven't had this issue in the past. I am clicking save every time. Changes disappear on refreshing the page.
It occurs on all browsers I've tried on multiple computers. I haven't messed around with cookies or anything because of the variety of systems I've tried it on, and that it was fine up until recently.