I believe this will probably be a duplicate of bug #709461. Although it's not immediately obvious, that is the bug that all other duplicates of this bug have been directed to.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/779651 Title: Invisible window caused by Application switcher plugins -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
