Throughout the program in many quizzes in many different topics I am getting red X´s for answers that were not my answers and I am not receiving credit for my correct answers. I have seen this happen many times (in 500 tests maybe 25 times) and I finally have concluded that it really is happening but unfortunately I cannot give the feedback that you require, namely, the location where it happened, because by the time I detect a problem, the original question is already gone from the screen and cannot be retrieved. I realize that it would be very difficult if not impossible to locate and solve this because of the sheer size and complexity of the program. I understand this as a former professional software developer but I still feel that I need to report it.
This is not a complaint, per se, but merely an informative comment for your consideration.
thanks for the opportunity to report this
thank you, James