Audio and Video out of Sync Because of Long Video

Hi! I am having a problem with the video and audio being out of sync. This hasn't happened before in any of my other videos. I use OBS, and I have 60 fps in the media and 60 fps in the timeline. I think this is because the video is long. The video I inserted in the timeline is 40 minutes long. I don't see why a longer video would be a problem, but from the start of the long video, the video and audio is almost two seconds out of sync.

Thank you for helping me, I really appreciate it!


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