In the main network of the Tezos block project, a bug was discovered one week after its official launch. According to tzscan.io, on August 24, due to the vulnerability, the release time of the blocks increased from 1 to 20 minutes.
The user of the service for hosting IT projects GitLab under the nickname "Jérémie" reported on block freezing for 45 minutes. Later in Riot chat he learned that developers are aware of the problem and they are working on its solution.
Bug between the baker and the node. The two communicate over json but the json serializer incorrectly handled some control characters. Immediate fix was to patch the serializer. Medium term fix is that the baker and node really should communicate using the binary RPCs instead.
murbard at Reddit
Soon after the discovery of the bug, one of the developers posted an urgent fix at GitHub, which was proposed to be installed by all the bakers. Currently the Tezos network operates in normal mode, and the units are released every minute.
As of September 25, 08:00 UTC network of Tezos worked in the standard transmission mode - 1 block per 1 minute