Hey @prudencezero, thanks for confirming those details!
This lines up with a known issue affecting users on enterprise networks with a VPN or firewall in place. Some workplace network configurations end up blocking a resource Adobe Express needs to load in order to activate the Download, Undo, and Redo buttons, which is why they disappear once the page finishes loading.
As a workaround, could you ask your IT team to allowlist this domain: design-assets.adobeprojectm.com? It would also be worth having them check Adobe's network endpoints reference, starting with "The minimal allowlist" and "Deployment and fulfillment services" sections under Identity and Sign-in Service, in case anything else is being blocked: https://helpx.adobe.com/enterprise/kb/network-endpoints.html
Rose