250081: The given input did not produce valid positioning data.
Description
The input features produced an empty set of radio fingerprints. This may be due to the geometric configuration of the inputs, such as the beacons being far away from the IPS areas, or thick walls that prevent propagation of signals.
Solution
Ensure that the geometry of the input represents the real-world environment as accurately as possible. Ensure that the deployed beacons are not far from the IPS areas and the walls allow signal propagation.