Is Elite multichannel version 6.4 certified to work with Microsoft Edge?
I've checked the official download and release file, but there is nowhere mentioned about Edge which means it's either unsupported or in development mode. Use the link below to access the release notes for version 6.4.
Release notes: https://www.devconnectprogram.com/site/global/products_resources/elite_multichannel/releases/6_4/index.gsp
To obtain a better answer, please contact the developer using the ticketing system available for users: https://www.devconnectprogram.com/ticket/generalTicket