Decentralized storage protocol Filecoin (FIL) came to a standstill on Dec. 19 as a bug caused instability on the network. According to a project status report issued by the Filecoin team:
Based on the timeline given in the status update, it took less than four hours for the Filecoin dev team to fix the problem. As part of the solution, miners had to upgrade to the new Lotus client.