A more thorough explanation:

Definition: An immaterial issue is a point in dispute between two or more parties that is not necessary to decide the point of law. It is a question or issue not directly connected with the matter in dispute.

Example: In a court case, the plaintiff may argue that the defendant was driving a red car, while the defendant argues that they were driving a blue car. However, the color of the car is not relevant to the legal issue at hand, such as whether the defendant was at fault in a car accident. Therefore, the color of the car is an immaterial issue.

This example illustrates how an immaterial issue is a point of dispute that is not necessary to decide the legal matter at hand. It is a question or issue that is not directly connected to the matter in dispute and does not affect the outcome of the case.