A mainnet glitch caused Cardano to slow its block production for one hour. Technical fixes and market dips have ADA prices looking at critical support at $0.30.
On November 21, 2025, the network of Cardano suffered a stagnation in the production of blocks lasting approximately an hour.
The main maintainer of IntersectMBO, the Cardano node software, openly reported the problem on X, citing a technical issue that was first identified in the Preview environment.
Source –X
They are liaising with the Cardano Foundation and the Input Output Global to deal with the situation.
The operators of nodes operating version 10.3.1 or subsequent to this were advised to upgrade to version 10.5.2 immediately in order to fix the slowdown on block production.
The update on X by IntersectMBO indicated that operators of older versions were not impacted and that customers of Daedalus wallets were not affected.
As PoolShamrock on X explained, the network did not entirely come to a halt; version 10.1.4 of the node was simply halted, and nodes running on later versions kept it running, keeping a “ghost chain” intact.

Source – X
This difference indicated that even though certain nodes stopped block production temporarily, the Cardano network still operated with lower capacity, continuing to make transactions.
ADA Price Faces Pressure, $0.30 Support in Sight
The technical hitch had an adverse market sentiment. The native cryptocurrency of Cardano, ADA, fell as much as 13.7 percent in the last 24 hours between around 0.47 and slightly above 0.39.

Source –X
In X, Cryptocurrency analyst ali_charts implied that the $0.30 level would be a major support of ADA, which would be a bottom should the prices remain on a downward trend.
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Technical Response and Network Stability Efforts
The rapid request by IntersectMBO to upgrade nodes to 10.5.2 and 10.5.3 was beneficial to stabilize the mainnet and resolve the partial fork due to a cryptographic library bug only known in some releases of nodes.
Technical teams operating with IntersectMBO, Cardano Foundation, and Input Output Global underlined the need to quickly upgrade the network to achieve stability and block manufacturing.
These combined moves demonstrate that Cardano believes in ensuring that despite the setbacks, the blockchain ecosystem will be safe and operational.
The event also resurfaced debates on the scalability of Cardano and its readiness to launch the next sidechain, Midnight, on December 8, 2025.
