If you are importing produced videoes in the create disc module then the first frame of the video will be used for the thumbnail. You have no chapters in produced videoes. Your workflow is different from mine.
Try this:
1. Don't import videos instead import projects which will have at least 1 chapter.
2. On each of the above individual projects, select the frame to be displayed for chapter 1 and save it.
3. Import those extra projects that you already performed step 2 above.
I find that if you try the above again after you saved the project then it absolutely won't work because the project is cached. Start a new project and choose a different name if you want it to work.
Let us know if any of this make sense to you or helps...
This message was edited 1 time. Last update was at Apr 19. 2015 14:11