Checklist

• I have searched the existing issues for similar issues.
• I added a very descriptive title to this issue.
• I have provided sufficient information below to help reproduce this issue.

Summary

After upgrading to version 1.30.0, an index column started to appear in st.data_editor, even though I used the parameter hide_index=True to keep it hidden. Attaching code to reproduce. It is working fine on versions v1.29.0 and below.

Reproducible Code Example

import streamlit as st
import pandas as pd

data = pd.read_json('{"Foo":{},"Bar":{},"FooBar":{}}')

st.data_editor(data = data,
    hide_index=True,
    num_rows='dynamic'
    )

Steps To Reproduce

No response

Expected Behavior

Current Behavior

Note the first column that appeared and requires user input

Is this a regression?

• Yes, this used to work in a previous version.

Debug info

• Streamlit version: 1.32.0
• Python version: 3.10.9
• Operating System: Windows and Linux
• Browser: MS Edge

Additional Information

https://docs.streamlit.io/library/api-reference/data/st.data_editor