Hi apart from sound network etc (standard) wingpanel is refusing to show apps icons like dropbox, shutter, copyq
This worked for me in Elementary 5.1.2 Hera:
cp /etc/xdg/autostart/indicator-application.desktop .config/autostart/
Change line 7 from:
Then I downloaded this package and installed it with
sudo dpkg -i wingpanel-indicator-ayatana_2.0.3+r30+pkg17+r1~daily~ubuntu18.04.1_amd64.deb
After logging out and back in again, the problematic applications (slack, nextcloud, etc) worked fine.