We have received your feedback.
What we understand is that you cannot use the progress bar thumbnail preview function to preview the bonus post-credit scene.
There can be several reasons that would lead to “No preview thumbnail” issue. For example, it might take minutes to get the preview screenshoot if the file size is large (with high resolution), especially when there are too many large video files in your playlist. It can also be the system environment (inlcuding operating system, drivers, installation etc.)
Is it possible that you tell us how to get the file you are watching, we might need to do a test on the original file, and to see what the specific problem it is. On the other hand, if it is possible, we highly recommend you to upgrade to Windows 10 X64, which will have a better support for playing modern codec video files.
We have released the latest v4.1.13, you can try whether it can solve your problem. For any other questions, just let us know.
We would like to create a discussing board or group for global users with the help of some instant messaging / forums (popular ones), we really appreciate it if you have any suggestions for us, thanks.
Thanks for your feedback :)