FCPX Video glitches in the timeline??

All original media is ProRes 422. All have been transcoded to Proxy also.

Everything was good until about 2 weeks ago, and it started happening.

I am working on 2 projects… a feature film, and a feature-length documentary

Both were good originally…. Nothing new added… Nothing changed on MacPro

The glitches just started randomly appearing

Cameras used: Canon 5D and 7D for documentary

Sonys for feature film, but I'm not sure of model #s

All exports prior to about 2 weeks ago were clean

I found the issue with this (sorry I forgot to post the answer in a timely manner)

Apparently, then the cache file is located on a RAID, it can become corrupted.

When I deleted the cache and moved it to a non-RAID drive, the problem goes away.

I confirmed this by deleting the cache on the RAID, and let it build another cache on the RAID. When it does, after a few weeks the corruption happens again.

Click on the Library, then look at the inspector for that library.

You'll see (about half way down) the information for the Cache. It will give you the location of your cache files.

I've found the simplest way to move it, is to :

1) Close FCP X

2) Go to where the inspector showed the cache was located... find it... delete it... then delete the trash

3) Open FCP X

4) Go back to inspector and edit the location of the cache to wherever you want it to be

Done

If that is where it is stored, then yes

But I think it stores the cache in the root directory of the drive - not in the FCP package/library