1. First please make sure that the QuickTime is updated to the latest version.
2.Open Lightroom Preferences and click on the File Handling tab.
- At the bottom of the File Handling options, find the Video Cache Settings.
- Click the Purge Cache button.
- Close the Preferences dialog.
- Close Lightroom.
- Launch Lightroom.
Thanks, this worked for a while. I purged the cash and was able to add another few thousand photos with a few videos mixed in. My last batch of adds went through, but over 50 videos were left out, with the following message in the log.
An unknown error has occurred while reading the video file. Connecting to Dynamic Link server failed. (54)
The videos were spread out in over a dozen folders within the parent folder I was adding. (I'm only adding the files to the catalog, and not copying the actual files.) I restarted LR, tried purging the video cache again, and got the pop up stating the message will be dismissed when the purge is complete. The following morning, the pop up was still there. I clicked cancel, and 30 minutes later it still says it's canceling. The Force Quit menu doesn't show LR as "not responding", but I don't know how much longer a simple cancel is supposed to take.
So the problem seems to be a little different now, but still comes back to not being able to import video files.