serebit Good news! It looks like both of those issues are fixed for the system tray. I managed to test it a bit more today. No sign of corrupted icons and the expected menus appear when clicking on them. I have never gone a day without the corrupted/non functional system tray issue appearing.
I couldn't reproduce the issue with 2 of every icon appearing either. So that's looking good. Thanks for the fix .
If you have some luck fixing the taskbar issue then amazing would be insufficient for this thread .