Why my epub generate o many classes? And they seems repeat, no stop

Help me, I always find situation like this.
The book is short but they have 100 or maybe 450 lessons…It’s crazy, I am crazy too.

I just uploaded a 100 minute audio for transcription into English, and I ended up with 4 lessons, none of which are complete.

Note that all four lessons started from the beginning. They didn’t all contain the entire transcript of the audio I provided. They ended at different points in the audio.

@MilkyWay2022 Can you please send book (file) you imported to support@lingq.com? Thanks.

OK



You can see, same book, but can only upload as a single subject, can’t add to an pre-existed subject or lesson course class.

I also need

How to combine two subject to one subject?

@MilkyWay2022 What do you mean by combining two subjects into one? Please note that the upper one in your screenshot is the course title, and the bottom one is a lesson title.

I want to use epub because pdf can’t flow and it has layout type, hard to listen and follow by ear.
Combining means I want to combine those pre-existed books or subjects to one, I creat a new subject but I can’t combine them, I can only select one pre-existed subject(book) with a new file, that’s all.