When you join a class with Progress reset, your progress in that class starts from zero.

• The class will not show any progress you made before joining it
• If you leave the class and join it again later, your previous progress in that class will appear again
• If you complete activities while you are not in the class, that progress will not appear in the class when you join again.

Need more help? You might find this useful:

Why did I loose my progress when I joined a class?