I have 10 clips or so in ProRes LT format with a framerate of 23.98 / 24 fps. When I open them in FCP, I get a verry jittery image because FCP recognizes it as 10 fps. The audio seems fine though: it plays the entire clip. But more than half of my clip is gone because FCP can't even reach there.
Any ideas? They're quite long clips, like 2 hours each.
What you need to do is take the clip into Cinema Tools and conform it to 23.98 fps. For some reason, Cinema Tools reads it as 23.80, but when you conform it, FCP takes that data and plays it back normally.