Hi, I'm working on a video and all of a sudden, the preview disappears and I cannot play the video when adding the final mp4 video. When I remove this video, all is fine again. Using this video in a new project works fine as well. How can I integrate this video to my current project?
Where did this MP4 come from? It sounds like there's an incompatibility issue with Camtasia. Unfortunately, it's inconvenient. But the easiest thing to do is convert the video using a program like handbrake to a format that Camtasia can utilize. Which in this case would be no more than converting an MP4 to MP4. Using a different codec. Bottom line, not all MP4's are created with the same codec. And Camtasia has problems with some codecs. This may or may not be your issue? But it sounds like the most likely source of your problem. A conversion solves the issue pretty much every time.