Try removing all obsolete indicators if any still present indicator-application indicator-appmenu indicator-bluetooth indicator-common indicator-datetime indicator-keyboard indicator-messages indicator-network indicator-power indicator-printers indicator-session indicator-sound indicator-transfer indicator-transfer-download-manager
sudo apt purge indicator-application indicator-appmenu indicator-bluetooth indicator-common indicator-datetime indicator-keyboard indicator-messages indicator-network indicator-power indicator-printers indicator-session indicator-sound indicator-transfer indicator-transfer-download-manager
Try removing all obsolete indicators if any still present application transfer- download- manager
indicator-
indicator-appmenu
indicator-bluetooth
indicator-common
indicator-datetime
indicator-keyboard
indicator-messages
indicator-network
indicator-power
indicator-printers
indicator-session
indicator-sound
indicator-transfer
indicator-
sudo apt purge indicator- application indicator-appmenu indicator-bluetooth indicator-common indicator-datetime indicator-keyboard indicator-messages indicator-network indicator-power indicator-printers indicator-session indicator-sound indicator-transfer indicator- transfer- download- manager