The pattern is redundant.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Nullable value type may be null.

Non-nullable property 'StarScoreThresholds' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable field 'FiveLaneDrumsHighwayOrdering' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Non-nullable field 'ProDrumsHighwayOrdering' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Non-nullable field 'FourLaneDrumsHighwayOrdering' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Dereference of a possibly null reference.