No taskbar icon - Linux

[JdeV987]

Using SuperSlicer ( SuperSlicer-ubuntu_18.04-gtk2-2.3.57.12.AppImage ) on:

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OS: Linux Mint 20.2 x86_64
Kernel: 5.4.0-120-generic
Resolution: 1600x900
DE: Cinnamon
WM Theme: cinnamon (Mint-X)
Theme: Mint-Y [GTK2/3]
Icons: gnome [GTK2/3]

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I had no icon when running the software, but after deleting everything, all forms of cache etc, rebooting, downloaded a new copy of SuperSlicer, all is good again.

Thank you for awesome software.

[JdeV987]

This morning the icon is blank again.
Any ideas what can cause this?
I don't have this problem with any other .Appimage file.

[JdeV987]

I found the problem.

In the file: /.local/share/applications/SuperSlicer.desktop , it referred to an icon file that did not exist. I edited it to point to the correct icon file / location.

Now it is 100%