Looking at the log on FlightAware, the plane was all over the place. Started losing altitude barely a minute into the flight, speed up, slowed down, alt up, down,
https://www.flightaware.com/live/flight/N257BW/history/20251218/1400Z/KSVH/KSVH/tracklog
It's pretty clear that the pilot(s) were attempting to return to the airport, but were distracted by a problem.