P: Videos don't play and don't import

Hi Rikk, Thanks for answering. But unfortunately it did not work. Still same error.

@Fred van Os

If a preference file did not solve it the next step would be to conduct a clean reinstall of Lightroom Classic: 

Lightroom Clean Install Procedure with the current version:

• Close Lightroom
• Restart the computer
• Use the Adobe Creative Cloud App to uninstall Lightroom Classic
• Restart the computer
• Install Lightroom Classic via the Creative Cloud App without launching any other programs.
• Restart the computer
• Launch Lightroom
• Wait 5 minutes

It's been six months since this problem appeared, and no solution yet...I've been so disappointed by Adobe's help service, that I've gone to Capture One, where I have no problem.

Hi Rikk, that did not work. I encounter this error on two machines I use (one at home and one at the office.) They both have the same issue with video-files.

Resetting your preference file would be a good next step. 

Did your problem got solved?, please let us know what you did to make it work. Facing same difficulties.

Hello,

Since version 9 I get the message: An unknown error has occurred while reading the video file. Connecting to Dynamic Link server failed. (1). I have cleared the caches, deleted the dynamic link... folder. Al does not work. 

I am mac OS Mojave, 10.14.6. Lightroom 9.2.

The mov's can be played without a problem in quicktime. But Lightroom will not import them. previous imported movs don't play anymore in lightroom (for e.g. a snapshot of the frame).

Please any idea's?

Fred

I ran into this issue over the weekend and want to thank everyone for this post. I couldn't play back any videos and couldn't delete my video cache. I renamed those three directories and then restarted my computer and that thankfully worked. (I also reset my LR preferences before renaming the directories, but that didn't do anything).

maybe you should only use imovie is that the solution?

Hi Mellissa, this procedure works perfectly with my Lightroom-6.14 on Windows (8.1) ! My videos run in the slide-show module now! Many thanks!