[v16] Manually created Desktop Icons stopped working

Information about bug

Creating a desktop icon is not working. At first when I created a desktop icon and connected it to a sidebar from the Desktop Icon form, it worked perfectly — it appeared and took me to the workspace sidebar. But suddenly, after I created an icon from the Desk UI (/app/home → Edit), all newly created icons stopped appearing on the desk at all.

I tried to replicate the previously working icon (POSNext, created by an app) by matching every possible field value, but the new icon still doesn't show up.

Moreover, when creating the icon from the Desk Edit menu, it appears but keeps showing this error:

"Icon is not correctly configured please check the workspace sidebar"

...even when connecting it to the correct sidebar.

Working icon (POSNext, created by app) vs my icon that doesn't appear

Working:

{
    "name": "POSNext",
    "label": "POSNext",
    "icon_type": "Link",
    "link_type": "Workspace Sidebar",
    "link_to": "POSNext",
    "parent_icon": null,
    "sidebar": null,
    "icon_image": null,
    "standard": 0,
    "app": null,
    "icon": "message",
    "logo_url": null,
    "hidden": 0,
    "bg_color": "gray"
}

My icon (does not appear, same structure):

{
    "name": "Test",
    "label": "Test",
    "icon_type": "Link",
    "link_type": "Workspace Sidebar",
    "link_to": "Accounts Setup",
    "parent_icon": null,
    "sidebar": null,
    "icon_image": null,
    "standard": 0,
    "app": null,
    "icon": "accounting",
    "logo_url": null,
    "hidden": 0,
    "bg_color": "blue"
}

Moreover I tried creating a new workspace sidebar having the exact name of desktop icon and connecting it but also not working

Module

other

Version

Frappe Framework: v16.6.0 (version-16) ERPNext: v16.5.0 (version-16)

Installation method

None

Relevant log output / Stack trace / Full Error Message.