I don't know when it actually went missing since I haven't had a use for bluetooth transfers lately. But when I recently tried to share an image to a friend via bluetooth, I found that the option wasn't there anymore. How do I retrieve it and what could have caused it to disappeare in the first place?
This is on ICS 4.0.4, rooted, unlocked bootloader.
I don't think it's a bug. Google have un-intuitively moved it around in ICS. Try this.
Open Gallery> select menu button > tap "select items" > select a photo > now tap the share icon. All the sharing options should now be visible.
This is why you select multiple files instead of one file just select one file and click to share you can find the Bluetooth option there