November 07, 2019 16:07:35
Please be advised that due to a system issue, matching on the Cboe Options Exchange order book in Series LOW - MPCA was unavailable between 15:58:46 and 16:01:39 ET.
All open quotes or orders in the affected range during the outage were cancelled unless requested to be kept live based on port configuration. Matching in the affected range has been restored and all systems are now operating normally.
Cboe Trade Desk