All United Airlines flights were grounded for "automation issues" Tuesday morning, according to FAA.
On Twitter, United said they began delaying flights around 6:00 a.m. to "ensure aircraft departed with proper dispatch information."
Shortly after, a ground stop cancellation was issued, releasing all flights.
According to United, all flights were clear to depart.
We began delaying flights at approx. 8 a.m. CT to ensure aircraft departed with proper dispatch information. Flights are now departing.
— United (@united) June 2, 2015