At 02:44:10 UTC the WebSocket API saw a degradation in performance for a minute where 7% of commands sent by clients failed. Connections continued undergoing a 1% failure rate of commands until servers recovered at 02:47:00 UTC.
Clients may have also seen an increase in response times for some market data REST endpoints up during this period. This was due to a rolling restart of the API servers that occurred in too tight of a timeframe.