There are two reasons for abnormal timing problems:

First, students are not familiar with the new platform, and will not see the learning progress immediately after exiting the course page. Students can only see the completed learning progress after refreshing the page or logging in next time.

Second, the browser used by students is not ie. Students who use browsers such as 360, Firefox and Youyou may not be able to keep time or decide to continue their studies.

For students who can't score, there are also the following reasons:

First of all, students are unfamiliar with the new platform. In the second learning course, they clicked "start learning" instead of "continue learning", so there will be unexpected situations.

Second, the course has not been developed to connect with the platform to realize breakpoint continuation, so these two functions cannot be realized for the time being. Students can be advised to drag the schedule to the corresponding position to continue listening.