Expander expanded=False not working

[kimehta]

two buttons.
one expander in each button.
both expanders are collapsed by default.

expanding one expander under one button automatically leads to another expander expanding.

Am I missing something here or is this a bug?

here’s the live demo
Streamlit

import streamlit as st

b0 = st.button("b0")
b1 = st.button("b1")

if b0:
    with st.expander("b0_expander", expanded=False):
        st.write("b0_write")

if b1:
    with st.expander("b1_expander", expanded=False):
        st.write("b1_write")

maybe something related:

Expander does not keep its state if something is displayed above it

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[Marisa_Smith]

Hey @kimehta,

First, welcome to the Stereamlit community!

Thanks so much for your detailed explanation and especially for the super helpful app and the exact steps to reproduce what you’re seeing. The same thing happens when I try and I have sent this onto the team to check out!

I will let you know once I hear more from them!

Happy Streamlit-ing!
Marisa

[Marisa_Smith]

Hey @kimehta,

The team was able to reproduce this and we have created an issue that you can follow on GitHub as we fix this bug!

Expander state is incorrectly shared by distinct expanders

Happy Streamlit-ing!
Marisa