I am using the free version of PowerDirector 365, and I am having the following issue. While on the timeline, when I click play to preview the video, the audio and the video sync up how I want them to. However, when I start from earlier on the timeline and let it play, over time the audio and video start becoming less and less synced until by the end of the video they are 10+ seconds apart. The sync issue also occurs when I try to render the video. How can I fix this issue? Thanks!