I believe the changes you made corrected the issue.  I went into my Voiki account under Firefox (I also tried Chrome last week and had the same issue), and I was able to go in and update my recording.  Thank you. 

I totally agree.  I cannot create any new avatars not edit the old ones.  I can record, but I cannot save anything.  This is what I see.  I want to share this special message with my students, but I can't.