Unable to retake quizes

The quiz questions are tough, so I am taking multiple attempts to clear all of them. But I am getting an error while trying to retake. Says, the time allocated is over, please submit. Is there some technical issue? Happens for all the courses in Deep learning specialization…

Sorry for the inconvenience.
I think you should try talking to the Coursera support.

Could you check this other learners are facing similar Issue