When I export a video, everything is exported correctly except for the video. For some reason, it uses the wrong parts from the clip used.
Can you please read and answer the questions here?
For hardware, the most important thing is GPU drivers. Old GPU drivers can cause Issues.
Otherwise, what's the source of the video? If it's a phone, tablet or screen recording, it's probably Variable Frame Rate (VFR). VFR footage is problematic for all NLEs, and can cause drift - playing the wrong portions of clips - on export. A MediaInfo report, as discussed in the first linked post above, will verify.
Old GPU drivers or VFR are the two most likely causes, so, update your GPU drivers and provide a MediaInfo report. If you do have VFR footage, we'll discuss the fix.
If it's not a driver or VFR issue the next step will be to contact Support, but let's try to eliminate the easy to fix issues first. 👍