Description
The unique ID field identifies each feature in the dataset and, consequently, is processed differently than other fields. Typically, the unique ID field is not a good explanatory or dependent variable for a regression model.
Solution
Do not include the unique ID field as one of the explanatory variables. If you must do this, however, first add a new field to your input dataset and use the Calculate Field tool to set the new field values to the values in the unique ID field.