For me only two apps cause this issue, those are Spotify and Matlab 2012a. It happens very rarely though.
** Attachment added: "Matlab 2012a invisible unity icon" https://bugs.launchpad.net/ubuntu/+source/unity/+bug/772986/+attachment/3323844/+files/Screenshot%20from%202012-09-19%2013%3A55%3A07.png -- 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ayatana-design/+bug/772986/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
