Basically, I drag&dropped Eldritch Blast onto my character sheet, then deleted it (because it didn't add it to the Attacks list), and now I can't use the drag&drop feature at all to copy spells from the compendium. Tried it in both Firefox and Chrome, doesn't work in either. Looking at the log, it says " Drop handled, returning..." after dropping the spell, but nothing happens afterwords. We eventually solved it by creating an entirely new character sheet, but I wanted to make this report anyway.