primers give Great job! green feedback when answer not correct

[datadrivn1]

i've been using the primers to teach beginners R and data science. They have pointed out that they will get the Great job green feedback box even when answer is not correct...which makes it difficult for them to know whether they did it correctly or not. Example: in Visualization Basics -> Aesthetic mappings -> A strategy ...you can run the code without color=class which produces the plot and then Submit answer. The result is Great job! with the following paragraph...And the answer is…
The colors reveal that many of the...even thought the answer is NOT correct. Please take a look.