Confirming, I see the exact same. I had Deja Dup on my panel, I got rid of it and added a few times, added it again and it shows as blank. Other new applications add fine.
** Changed in: unity (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/772986 Title: Unity launcher single missing/invisible/blank icon -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs