Got this weird new problem that I can't really make heads or tails of. For the past few days, when adding in either media or image on iOS 8, once you hit the button the focus flies all the way to the top of the page where it pops up the link/embed box. Then, once the embed is done, you have to scroll all the way back down to see the reply box again. You can't keep typing because you're no longer in the reply box area so there is no way to call up the keyboard.
Its kind of hard to screenshot but I'll see if I can work something up.
I believe this should be fixed now. I've really just changed how positioning of the editor overlays works on mobiles. I just rolled the fix out here so you can try it out, though you may need to do a hard refresh to get the updated files.