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Default opened sidebar behaves weird

Hi creative minds. So i have sidebar which is on default opened stage. I mean i do not need to press button to open sidebar. But after setting sidebar default opened when i press dropdown menu in the sidebar it opens over the another dropdown i mean it does not push another dropdowns down. Down below there is link))

https://preview.webflow.com/preview/iyc?utm_medium=preview_link&utm_source=dashboard&utm_content=iyc&preview=8388ca069399ccfeebb84275a77e7f58&mode=preview