In my SO profile, you may see something odd: a peeking duck.
I've just recently uploaded this new profile picture of mine. I checked it after the upload and everything's fine. After a few hours, I opened my profile and there it is, the duck has somehow become afraid of the people viewing it.
Is this a bug, a feature, or is it just the duck?
I am about to re-upload my profile pic, but I've decided to drop first this topic to meta.
And if you're curious, here is the original picture.
ADDITIONAL: I've used the non-gravatar way to upload the picture.
ADDITIONAL 2: The problem only shows in the profile view. No problem in chat, less info profile view, and in the questions and answers.
UPDATE: Re-uploaded picture. Status normal (for now, at least).