cinnamon: Certain icons repeat with appindicator

[ghost]

Describe the bug Some icons are repeated several times (this might happen with appindicator and so far the issue appears on a Skype and Remmina with appindicator enabled

To Reproduce

1. Install both Skype for Linux and a Remmina installation with AppIndicator enabled
2. On Cinnamon Settings turn on the option "enable indicator support"
3. Restart the machine or turn it on (options are also available instantly)
4. Open Skype or Remmina

Expected behavior Only one tray icon/indicator is available

Actual behaviour There are a lot of tray icon/indicator

Frequency Does the issue happen:

• [x] Always
• [ ] Randomly

Edition (Desktop environment): In which edition is this happening?

• [x] Cinnamon Edition
• [ ] MATE Edition
• [ ] Xfce Edition

Live or post-install: Indicate if this is happening after the installation, or during the live session:

• [x] Post-install
• [ ] Live session

Screenshots If applicable, add screenshots to help explain your problem.

Locale: I have tried the output on a machine with Spanish El Salvador, but issue also happens on an english machine

LANG=es_SV.UTF-8 LC_CTYPE="es_SV.UTF-8" LC_NUMERIC="es_SV.UTF-8" LC_TIME="es_SV.UTF-8" LC_COLLATE="es_SV.UTF-8" LC_MONETARY="es_SV.UTF-8" LC_MESSAGES="es_SV.UTF-8" LC_PAPER="es_SV.UTF-8" LC_NAME="es_SV.UTF-8" LC_ADDRESS="es_SV.UTF-8" LC_TELEPHONE="es_SV.UTF-8" LC_MEASUREMENT="es_SV.UTF-8" LC_IDENTIFICATION="es_SV.UTF-8" LC_ALL=

Drivers: Graphics: Device-1: Intel HD Graphics 5500 vendor: Toshiba America Info Systems driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:1616 Display: x11 server: X.Org 1.20.5 driver: intel unloaded: modesetting alternate: fbdev,vesa resolution: 1366x768~60Hz, 1366x768_60.00~60Hz OpenGL: renderer: Mesa DRI Intel HD Graphics 5500 (Broadwell GT2) v: 4.5 Mesa 19.1.1 compat-v: 3.0 direct render: Yes

Additional context You can check additional information in the bug report via Cinnamon, the link to the bug report is here, since I wasn't sure if the issue is with the applications, Cinnamon or something else. Some additional screenshots are provided there

[corbin-auriti]

Confirmed with Skype and Remmina, although no issues with appindicator off.

[daddy33]

I have also the exact same issue with clipboard managers clipit and diodon, as well as with pcloud-drive. I simply turned appindicator off for now.

[basilky]

Already reported at https://github.com/linuxmint/cinnamon/issues/8595

[daddy33]

Already reported at linuxmint/cinnamon#8595

Different issue.

[clefebvre]

Fixed.