P: Videos do not play or import macOS High Sierra

My apologies. Yes I did use the Adobe Cleaner to uninstall the CC DESKTOP AND ALL OTHER FILES. As noted before Abobe Bridge and Photoshop open all files.

Paul,

I am sorry you are still having issues after going through all that work. I noticed in your post that you didn't mention using the Adobe Cleaner after uninstalling the versions of Lightroom Desktop.  I understand that to be a critical part of the process. Did you use the Cleaner? 

I want to make sure I report back accurate and complete information to the engineering team. 

Okay,  So I did this.    In uninsalled all Adobe Apps.   Uninstalled Creative Could desktop.    I resinstalled Lightroom 6.     All videos import no problem.    I then installed Lightroom 7.3.   Many videos do not import.  Same folders same videos.   I also noted a huge difference in the performace of Lightroom 6 over Lightroom 7.3.     Its clear to me that something is broken and Adobe does not seem to have a handle on whats going on.   Lightroom is Broken.    Slow cumbersome and so many features broken, missing or undocumented.  So frustrating.

This seems similar to other fixes offered in the past.   Each time I uninstalled and opened a previouls version of Lightroom then went back to the latest version it worked.    Then next update came along and broke it again.   What has been done to make this a permanent fix.

For those of you on this thread still having issues with Video Import/Play, this set of steps has worked for some users:

1. Uninstall all other LrD versions. Use Cloud cleaner to clean all files.
https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html
2. Install Lr 6.0, Upgrade to Lr 6.14. 
3. Video should be running fine now.
4. Install Lr 7.3 after this.
5. Import video files again. It should work fine now.

Give it a try and let us know if it solved your issue. 

I did all the above steps and there are still the same problems with playing Video files.

After reopening Lightroom:
1/ All movies from iPhone 8 recorded in H.264 are being played upside-down
2/ Movies recorded on the camera in MTS or MP4 are playable w/o problems.
3/ All movies recorded in HEVC format are greyed out and if I click on them there is a message Lightroom has encountered problems reading this video.
Then I can't play any other video until I restart Lightroom Classic.

This is becoming very annoying so I hope the solution can be find asap.

Hi all,

Can you please try the below steps?

1. Quit Lightroom Classic CC.
2. Navigate to the folder paths mentioned below for your specific operating system.
3. You can do any of the three below steps:
4. 1. Navigate into each of the below folders and find a file called “Trace Database.txt”. Delete this file OR
      
   2. Rename the below folders OR 
   3. Delete the folders.
5. Reopen Lightroom Classic CC and import your videos as normal.

macOS (Finder > “Go" > "Go to folder..." > Paste the below file paths):

• <user>/Library/Preferences/Adobe/dynamiclinkmanager
• <user>/Library/Preferences/Adobe/dynamiclinkmediaserver
• <user>/Library/Preferences/Adobe/DyanmicLinkMediaServer

Windows (please make sure to have “Show hidden files” enabled):

• <user>/AppData/Roaming/Adobe/dynamiclinkmanager
• <user>/AppData/Roaming/Adobe/dynamiclinkmediaserver
• <user>/AppData/Roaming/Adobe/DyanmicLinkMediaServer

If these steps don't resolve the issue for you, please let us know in a reply.

Thanks,
Melissa

Hi Paul,

We have two workarounds , Deleting dlms Preference folder and importing video in 6.x and then importing in 7.x. Both has resolved this issue. 
Please let us know if either workaround did not work for you.

-Kanheiya

Deleting this files has not helped, i.e. video still do not play. Don't have ..amecommand.. folder, so deleted the second file. 

What helps for some time (could not determine ) is restarting the iMac, however the issue comes backs in a few hours/ days. I rarely restart the iMac, only for Lightroom. 

I have deleted the above files in the past.   I sent messages related to the above with NO response.   The only thing that works for sure and is a TEMP solution is to load some videso into Lightroom CC 2015 or Lightroom 5.     Lightroom Clasaic CC then works but stops whenever it chooses to and for certain whenever this is a new update to Lightroom Classic CC.