City of Marion issued the following announcement on Sep 10.
Due to the increased COVID-19 numbers and the continued spread of COVID-19 in Western North Carolina, the 2021 Mountain Glory Festival has been canceled. The City of Marion is hopeful that by October 2022 things will be safer and the Mountain Glory Festival can be held. Organizers will be in touch with vendors by email over the next few days.
Original source can be found here.