I also experience this problem with two icons (HP printer & Synology NAS). I have tested the bug fix from the pre-release package and find it works for me.
Current Package: Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============-===============================-============-=========================================================== ii unity 7.5.0+16.10.20160906.1-0ubuntu1 amd64 Interface designed for efficiency of space and interaction. Pre-release Package: Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============-=============================-============-=========================================================== ii unity 7.5.0+16.10.20161112-0ubuntu1 amd64 Interface designed for efficiency of space and interaction. Ken -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1635625 Title: Some indicator icons are missing after unlocking the screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1635625/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs