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Two editors, two drives, same media - can't reconnect XML import.

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Tangier Clarke
Two editors, two drives, same media - can't reconnect XML import.
on Sep 5, 2018 at 3:37:07 am

Folks, this is an issue I have had off and on every since FCP X 10.4 came out and it's inconsistent so I haven't been able to nail down what causes this:

I have a library of media and another editor has a copy of the same media. When the other editor sends me an XML I am unable to reconnect the video files to mine. I get compatibility errors. In particular the error is:

The original file didn’t have audio, but the new file does.
Relinked files must have the same media type and similar audio channels as the original files, and must be long enough to cover all the clips that reference the files.

Every once in a while this happens and I am stumped how we can have the same media that can be relinked when sending XMLs between each other.

Any ideas?

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Joe Marler
Re: Two editors, two drives, same media - can't reconnect XML import.
on Sep 5, 2018 at 11:27:52 am

When relink fails it doesn't give you much info. However if you pick only one file (which failed previously) and relink that, it will give more specific info about why it failed. Try that, then examine the file metadata on the source and destination machines using MediaInfo, Invisor, etc.

The library contains metadata about each media file. During relink this is compared to the metadata read from the disk file being relinked. Unfortunately I don't know if an easy way to examine the stored metadata, except to export an XML, open it in TextEdit and search for the filename. That will lead to something like this:

<asset id="r28" name="C0099_28672" uid="F51E6A6ED48F2F90D9A86998A9001A05" src="file:///Volumes/TBay8TB_SSD_True/CMA/CMA060518/HarleyA6500/C0099_28672.MP4" start="0s" duration="6186180/60000s" hasVideo="1" format="r27" hasAudio="1" audioSources="1" audioChannels="2" audioRate="48000">

If you export an XML on your destination machine, then for a problem file compare the metadata within the XML from both source and destination XMLs, this will show whether the file metadata (from FCPX's viewpoint) is the same or not. If it's not the same the question is why not. In that case the next step is examine the source and destination media files themselves using MediaInfo, Invisor, etc. If they are the same, the question is why is relink failing.

BTW the latest version of Final Cut Library Manager can produce a .csv list of all media files used in a library, including pathname, but it doesn't list metadata. It would be nice enhancement if it did.

If you are using external proxies, ie proxies generated by FCPX but stored outside the library, relink will be unreliable in that case. That is a known problem I filed long ago.

Are both media sets on both machines on HFS+ partitions? If one is a portable exFAT hard drive, maybe that's a factor.

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Chad Greene
Re: Two editors, two drives, same media - can't reconnect XML import.
on Sep 6, 2018 at 6:09:36 pm

[Tangier Clarke] "The original file didn’t have audio, but the new file does."

We run into this problem also. We are on FCPX 10.3.4 so it isn't just a 10.4 problem. I have been going with the theory that when the media was imported originally, FCPX removed "silent channels" from the clip so relinking sees a difference in the number of audio tracks and thus won't relink. But I haven't had time to test this theory.

So far, we haven't found a solution for relinking and have resorted to re-importing the media. Thankfully it hasn't happened to a complex edit so re-importing hasn't been a big deal. Needless to say, we don't EVER import and have FCPX remove silent channels.

One thought, maybe the XML be changed to include audio before you import it?

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