[biomecanoid]

All my shortcuts have the same icon which i can not change as the "set icon" does not work does nothing:

There is a little work around to fix this manually but you will have to be able to edit few files preferably on the laptop/pc and you will need to be able to navigate to kodi folders/files.
Both files are located within userdata\addon_data\script.skinshortcuts.
First file to edit will be mainmenu.DATA.xml and look for main menu line <icon>YOUR ICON LOCATION</icon>
Second file to edit will be skin.titan.bingie.mod.properties  and look for lines with "icon" words for example ['mainmenu', 'audio', 'icon', 'YOUR ICON LOCATION'],

Both files contains information about main menu items on your Kodi setup and make sure both files matching. Example from my set up.

mainmenu.DATA.xml :

    <shortcut>
        <defaultID>audio</defaultID>
        <label>Audio</label>
        <label2 />
        <icon>shortcuts/music.png</icon>
        <thumb />
        <action>ActivateWindow(Programs,"plugin://plugin.program.autowidget/</action>
    </shortcut>

skin.titan.bingie.mod.properties:

 ['mainmenu', 'audio', 'icon', 'shortcuts/music.png'],

and as you can see both files matching icon location/name    (shortcuts/music.png)

save and enjoy

Thank you I will try that