Cardano experienced a mainnet glitch that slowed block production and caused network congestion. Intersect is coordinating with the Cardano Foundation and Input Output to resolve the issue and advised node operators on versions 10.3.1 or higher to upgrade to 10.5.2; older versions and Daedalus users reportedly not impacted. New blocks are still being produced but at reduced capacity, prompting scalability concerns ahead of the Midnight token launch on Dec. 8, 2025. ADA fell roughly 13.74% in 24 hours to $0.4047 (low $0.3911).

Mainnet glitch slowed block production and caused network congestion; Intersect recommended node upgrade to 10.5.2 and is coordinating fixes with Cardano Foundation and Input Output; blocks continue at reduced capacity; ADA dropped ~13.74% to $0.4047 and community expressed scalability concerns ahead of the Midnight token launch — factual items that make the story near-term negative for ADA.