Board Thread:Game Discussion/@comment-15491722-20131209070003/@comment-9890645-20131210164235

I think it has to do with the (lack of a) background on the avatars. (This has been going on for weeks/months now.)

If an avatar has an "invisible" or "transparent" background, the flash occurs on the background. For most avatars, there is nothing fitting that, so no flash.

We can see the flashing on some of the Mobage avatars, particularly the character avatars, as they have transparent backgrounds.

More lousy programming on Mobadouche's part, surprise, surprise.