Description
At least two of the geostatistical models provided in the Input geostatistical layers parameter are identical. These models will receive equal ranks regardless of the criteria provided.
Two models are identical if they share the same data source (for most interpolation methods, an input point feature class and field) and use the same interpolation method with identical parameters.
Solution
No action is required. However, consider removing duplicate models so that every model can receive a unique rank.