UI elements not refreshing after page reload when using mosaic_app.embed()

[cboillet-dev]

Describe the bug

When embedding a marimo app using app.embed() in a parent Marimo app, the child UI elements rendered with mo.vstack are dynamically refreshed when the page is loaded for the first time. However, if I refresh the page afterward, the UI elements are no longer refreshed correctly — they seem to be cached or preserved from the previous state.

Actual Behavior

• On the initial load, the UI elements are displayed correctly.
• After a page reload, the UI elements are not refreshed and seem to retain the state from the previous load.

Expected Behavior

• UI elements displayed with mo.vstack should be refreshed correctly each time the page is loaded, even after a page reload.

Environment

Replace this line with the output of marimo env. Leave the backticks in place.

Code to reproduce

dashboard.py

import marimo

__generated_with = "0.10.18"
app = marimo.App(width="medium", app_title="Embedded Dashboard")


@app.cell
def _():
    import marimo as mo
    return (mo,)


@app.cell
def _(mo):
    centers = ["Center A", "Center B", "Center C"]
    indications = ["Indication 1", "Indication 2", "Indication 3"]

    dropdown_center = mo.ui.dropdown(
        centers,
        value="Center A"
    )

    dropdown_indication = mo.ui.dropdown(
        indications,
        value="Indication 1"
    )
    return centers, dropdown_center, dropdown_indication, indications


@app.cell
def _(dropdown_center, dropdown_indication, mo):
    mo.vstack([
            mo.md("## Test Dashboard"),
            mo.hstack([
                dropdown_center,
                dropdown_indication,
            ], justify="start"),
            mo.md(f"Selected Center: **{dropdown_center.selected_key}**"),
            mo.md(f"Selected Indication: **{dropdown_indication.selected_key}**")
        ])
    return


if __name__ == "__main__":
    app.run()

embedding.py

import marimo

__generated_with = "0.10.18"
app = marimo.App(width="columns", app_title="Test embedding")


@app.cell(hide_code=True)
def _():
    from dashboard import app as child_app
    import marimo as mo
    return mo, child_app


@app.cell
async def _(child_app):
    result = await child_app.embed()
    return (result,)


@app.cell
def _(mo, result):
    result.output
    return (result,)
 
if __name__ == "__main__":
    app.run()

````

[jovezhong]

I also tried

refresh = mo.ui.refresh(
  label="Refresh",
  options=["1s", "5s", "10s", "30s"]
)
refresh

No matter manual refresh or auto-refresh, the below SQL cell is not re-run