Cannot upload a new dataset and use Explore button

[ahuang11]

Something is up here:

save.mp4

tabs = Tabs(controls, dynamic=True, sizing_mode='stretch_both', design=Material)

        @param.depends(explore_button, watch=True)
        def get_explorers(load):
            if not load:
                return
            with explore_button.param.update(loading=True), self.interface.param.update(loading=True):
                explorers = []
                for table in table_select.value:
                    source = source_map[table]
                    if len(memory['sources']) > 1 and SOURCE_TABLE_SEPARATOR in table:
                        _, table = table.rsplit(SOURCE_TABLE_SEPARATOR, 1)
                    pipeline = Pipeline(
                        source=source, table=table, sql_transforms=[SQLLimit(limit=100_000)]
                    )
                    table_label = f"{table[:25]}..." if len(table) > 25 else table
                    walker = GraphicWalker(
                        pipeline.param.data, sizing_mode='stretch_both', min_height=800,
                        kernel_computation=True, name=table_label, tab='data'
                    )
                    explorers.append(walker)

                tabs.objects = explorers + [controls]
                table_select.value = []