I finally found the core problem that always failed to upload and solved it perfectly - AutoSub

Update Date: 2021-07-28: 1. Optimized the file upload part. Now it completely solves the core problems such as freezing, failure, and slow speed in file uploading. 2. Solved the problem that some videos failed to enter the editing page by clicking on the details. 4. Added a more friendly reminder of failure to obtain video duration, which will not cause users to question. 5. Various loading failures due to core verification problems are now perfectly optimized, and the user experience will be improved a lot.