With the original (pajeet?) software that Boeing spacecraftjunk cannot be undocked remotely. Someone has to sit in it and do the kamikaze thing. So it's permanently blocking one of the ISSs docking ports. They're trying to implement a feature allowing remote undocking and upload/install it in the Boeing while it's docked at the ISS...
They basically sent up the Starliner lacking key features and without it ever completing a successful unmanned mission first. /golfclap