Some lessons keep changing levels
I have finished my French lessons and is enhancing the lessons with levels lower than 5. It is strange to find that many lessons become lower after they have been enhanced, such as from golden level 5 to level 4, or from level 4 to 3 or even lower.
I appreciate the levels to help me understand where I need improvements, and often go to the lessons with lower levels, but do not understand why this happens
Why don't my skills stay golden?