cannot add widgets.Text to my ipyleaflet map

I am creating a map using ipyleaflet and can add various widgets to the map using ipywidgets. However, when I add a widgets.Text to the map, the map disappears from the dashboard, though I do not see such behaviors outside of dashboard for a code like this:

import ipyleaflet as L
import ipywidgets as widgets

# Define the map
m = L.Map(center=(51.0, 0.0), zoom=5)

# Create a text widget
text_widget = widgets.Text(
    value='',
    placeholder='Type something',
    description='Text Input:',
    disabled=False
)

# Create a widget control and add it to the map
widget_control = L.WidgetControl(widget=text_widget, position='topright')
m.add_control(widget_control)

m

Here you can find the script for Pyshiny.

Start by running the Python reproduction in the linked PyShiny editor, then compare the dashboard behavior with the same ipyleaflet and ipywidgets code outside the dashboard. Investigate why adding widgets.Text through WidgetControl makes the map disappear. Done means the map remains visible with the text control in the dashboard.