As per title.
I have indicators enabled. I have on the right hand side of the top panel in order from right to left:
power icon
calendar
volume control
network manager
dropbox
BitTorrentsync
Caffeine
Qbittorrent
Skype
Thunderbird
Of all of the above, I have skype, thunderbird and qbittorrent set to automatically open minimised to the top panel at login
Qbittorent is not always appearing, even though I know it is active and downloading something. In order to bring it up, I am having to go to the normal menu and call it up via the launcher in there.
As part of the process of tracking down the problem, I went into Mate Tweak and disabled and then re-enabled indicators. However, at the point, another odd thing happened. At the left of my top panel, I have a number of icons including:
firefox
chromium
libsensors
mate panel
On resetting indicators, all of these icons disappeared and so I had to reinstate them. In other words, resetting indicators actually reset the entire mate panels wiping out any previous customisations