Mulltiselect widget collapses in some cases

Using Streamlit
1

I’ve been working on a local Streamlit app, and I’ve been encountering a strange issue with the multiselect widget.

I have a multiselect widget in a sidebar, and every time I select something from the list, it collapses, which is annoying.

I then have another multiselect widget in an expander in the main window, and I can select multiple items, and the list only collapses once I click elsewhere, which is how I want all my multiselect widgets to work.

Here is the code snippet for the sidebar widget.

                        if sample_inclusion_exclusion == 'Include':
                            sample_options = ['Show all'] + sorted_column_names[sst.selected_name].to_list()
                            default_sample = 'Show all'
                        elif sample_inclusion_exclusion == 'Exclude':
                            sample_options = sorted_column_names[sst.selected_name].to_list()
                            default_sample = None                        
                            
                        if 'sample_selection_list' not in sst:
                            sst.sample_selection_list = None
                            
                        # Choose which samples to include/exclude
                        selected_samples = st.multiselect("Select which samples to " + sample_inclusion_exclusion.lower(), 
                                                          sample_options, 
                                                          default=sst.sample_selection_list if sst.sample_selection_list else default_sample,
                                                          label_visibility='visible',
                                                          key="list_selected_samples",
                                                          on_change=lambda: setattr(sst, 'sample_selection_list', sst.list_selected_samples))

                        sst.selected_samples = selected_samples

Here is the snippet for the widget which is not collapsing.

                                if 'multiselect_samples_for_bar' not in sst:
                                    sst.multiselect_samples_for_bar = None                            
                                
                                multiselect_samples_for_bar = st.multiselect(
                                    "Select up to 10 samples to compare their compound profile",
                                    sst.numeric_columns,
                                    max_selections=10,
                                    default=(sst.multiselect_samples_for_bar 
                                             if 
                                             (sst.multiselect_samples_for_bar and sst.multiselect_samples_for_bar in sst.numeric_columns) 
                                             else 
                                             None),
                                    key="multi_selected_samples",
                                    on_change=lambda: setattr(sst, 'multiselect_samples_for_bar', sst.multi_selected_samples)
                                    )