A nonexistent object was used in an `Output` of a Dash callback.?

Hi guys, getting the following error and not sure why:

A nonexistent object was used in an Output of a Dash callback. The id of this object is sidebar_container and the property is `children.

Currently building a multipage app with 4 pages. The last page, contains a callback that contains 'sidebar_container:

callback(
    Output("sidebar_container", "children"),
    Output("status_main_section", "children"),
    Output('summary_map_unit_clicked_value', 'clear_data'),
    Output('status_unit_clicked', 'data'),
    Input({'type': 'list-group-item', 'index': ALL},'n_clicks'),
    Input("jobsite-dropdown", "value"),
    State('summary_map_unit_clicked_value', 'data')
    # State("list-group", "children"),
)

def refresh(n_clicks_list, job_site, summary_map_unit_clicked):

    data_processor = get_data_processor()
    ....
return _build_sidebar(job_site, unitname), _build_main_section(job_site, unitname), True, unitname

The layout for this page is

layout = html.Div(

    [ dbc.Row(  
            [
                dbc.Col(html.Div(id="sidebar_container"), width=3),
                dbc.Col(html.Div(id="status_main_section"), width=9),
            ],className="mt-3",
        )
    ],
)

This last page doesnt throw this error, but all other pages do. Not sure why the other pages care about this sidebar_container. All pages share a job-site dropdown which gets built dynamically, and i can only presume that this is triggering the callback on the last page even if im not on it.

Any ideas?

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