Override a linked scene?

Hello, how can I override a linked scene?

I linked a Scene from another .blend to the current .blend. I followed tutorials on the internet to right click on things and make library override but Blender keeps saying one of the parents is not overridable.

When I hover my mouse to the link icon next to the scene selection menu, the tooltip says I can Shift+Click to override it but doing that results in nothing to me.
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I have the same problem :frowning:

We need to see .blend files and the exact error message . . .