Choppy imported AVCHD footage - FCPx 10.4

Hmm... Do you know why 119.880 FPS wasn’t an issue two versions of final cut pro ago? To test things out further, I reimported footage shot at 120 fps that worked perfectly in FCPX two updates ago (a project I exported and published Feb 2017). Now, in FCPX 10.4, this same exact clip that produced smooth slow-motion at 25% speed in an older version of FCPX now shows as 119.88 FPS in mediainfo, shows as 60 FPS in the inspector window of FCPX and is extremely choppy, is missing frames and has ghosting. This exact clip did not look like this in FCPX in Feb 2017. Do you know what changed? Thank you so much for your help!!!

Similar issue here, however playback is perfect in the browser - only choppy in the timeline... (?)

Sony RX100V, OS 10.13.1, FCPX 10.4

Source .mp4 files from camera play perfectly in QT. Converting to .mov and dragging into FCPX results once again in choppy playback. Files seem to work fine everywhere except in the timeline.

Can check, but given everything is fine on Macbook, doesn't that render specs moot? Drive, files, etc... are all perfect on Macbook running Sierra. Not on Mac Pro with High Sierra.

I assume Mac Pro problems can be explained based on your comment that it does not have a hardware codec and/or High Sierra. Regardless, the problems only exist when using the silver cylinder...

Do not understand why people cannot give exact information. It’s completely frustrating having to drill down for real info.

When someone says that playback is a problem in the timeline but not in the browser that makes absolutely no sense unless there is a settings mismatch. Why is it so hard to give real information?

The most common cause of playback problems has always been hardware and drive related issues. Why is it so hard to give real information on hardware, that I don’t know maybe need new drivers for a new OS.

So your version of AVCHD from your camera has a problem in the QT player but others don’t. For someone else the Sony camera AVCHD has a problem in the timeline but not in the browser or the QT player. Canon AVCHD has video tearing or frame repeating in playback which others don’t. Some cameras with playback problems are showing strange frame rates like 29.99 or 29.94. Sometimes it’s in some frame resolutions and not others. Bottom line is that not sharing real information with real specs just leads to confusion, especially when others playing back the exact same media that’s been shared don’t have the playback problem. Then of course there’s playhead skipping in the timeline, which has nothing to do with video playback and a completely separate problem with some media that further confuses the issue when people speak in shorthand.

O.k., Tom, you are a Pro for this problems. But here is a large group of avchd user with several macs, harddrives etc.

But all of them used HS and FCPX. So that is the real problem.

Apple has to test what is the reason.

how about seeing it on a youtube video??? That should clarify what it looks like if that's what you are asking. If you are asking to see the actual file I would have to pull it out of FCPX (not hard...)

Here is the youtube link...it is throughout the video, but 1:22 will give you a good example (first one I quickly found):

Different dance light "scenes" explained - YouTube

Tom....i'll get on that this week for you and try to upload a file for you to see...shouldn't be too hard for me to find.

CORRECT though, i don't believe the audio had any choppiness to it (if it did, it would be in that video cuz i was using the audio from the camera)

So it's only the length of the file that matters? Has anyone mentioned the length as a factor, not just any AVCHD file? How long is the file? These cameras still using FAT32 formatted cards?

I have a lot of Sony media that doesn't have this problem, though the files aren't very long, most under a minute.

Look, this is a user to user forum to share information. To fix a problem you MUST know what's causing the problem. What's the common factor that makes this problem occur sometimes and not other times, occur for some people and not for other people, occur for some people in one OS and not another. To say it should be fixed is great, but NOBODY here can fix it, the only thing we can do is try to provide information that can lead to a solution. The only way to so that is to share complete information. This forum has the largest pool of the over two million FCP users worldwide. Feedback and here are the best places to share information that can lead to a solution.

If it's happening the way you describe then the first thing to look at is how the application interacts with AVCHD files written the way Canon creates them on Canon formatted media. It would be stupid to ignore that.

FCP upgrades have always been shaky, which is why I got into the habit of waiting at least 6 months before upgrading, but this time I accidentally upgraded and am stuck because I don't have time and spare drives to reinstall old versions of OS and all the software that comes with them. Luckily, I have been using Premiere for graphically intensive projects and will probably shift more of my work there now. I have upgraded Premiere several times in the past 6 months and have not faced similar hurdles. Too bad, FCP X is great when it works!

I don’t know about all GoPros but I’ve heard of it quite a lot. It sometimes makes the video go completely red.