video previews showing as gray in grid view of LR Classic but am able to view ...

[kayak107]

video when I click to play.   Out of 50 videos in grid view, none are visible.  All are gray.

Just noticed following error message.  Have not seen it before.   It appears with every video preview.

LIGHTROOM HAS ENCOUNTERED PROBLEMS READING THIS VIDEO

checked out this error message on the web and am in the process of purging the video cache.  hope it works.  waited a few minutes but still get same results.  will try restarting LR tomorrow.

[AxelMatt]

We need more informations before we can try to help.

Which operating system and version do you use?

Is you system up-to-date (patches, driver etc.)?

Which exact version of Lightroom do you use?

Which format do your video files are?

Do you have tried to deactivate the GPU support? -> https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html

[kayak107]

Harvey D <xxxxx>	7:30 AM (1 minute ago)
to Adobe

Mac high sierra 10.13.6

LR classic 8.4.1

videos are MVI_AVI

all updates installed

This is actually a fairly recent development.  One more thing -there is one preview that is visible.  it's MVI-mp4

[Moderator]

[personal information removed per policy - https://forums.adobe.com/docs/DOC-3731]

[This is a public forum, not Adobe support, please do not post personal information]

[kayak107]

that worked with some of the previews.

out of 189 video previews about 70 became visible.  

the rest are the same-gray.

I tried turning off LR and restarting twice.

[kayak107]

cannot see your last message.

[kayak107]

why am I not seeing your posts??

[kayak107]

still NG.  can you type your replies in the email?

[kayak107]

the last message that I was able to view was when you sugested to deactivate the GPU.

have seen nothing since then in this forum,

[AxelMatt]

You can't see anything in this forum since I posted thart you try to deactivate GPU. I've been online for only a short time since I posted the answer.

You have to be more patient. All users are volunteers in their spare time and try to help. Since you can not wait for your concern is resolved immediately.

As far as I understand some files will be shown. Right?

Are all videos in the same format?

Are they in other apps visible?

You can try to reset the Lightroom preferences

https://www.lightroomqueen.com/how-do-i-reset-lightrooms-preferences/

Possible you monitor profile is faulty (but in this case all videos has to been grey). But give it a try:

https://www.lightroomqueen.com/how-do-i-change-my-monitor-profile-to-check-whether-its-corrupted/

Do you have try to update your graphic driver? If you use the newest version, please try an older one.

If all this does not help, then I have no idea. It's possible that's an MAC specific problem. I don't have any experience with MACs. I'm a Windows user.  

[kayak107]

Sorry about the caps yesterday.  kept getting emails from you and not able to see content.  Great to finally be able to read your feedback.

First, thank you for hanging in there with me.  I do appreciate your help.  trying to be patient but very frustrating not to be able to see your replies.  First time this has ever happned to me in this forum.

I will check out the feedback you've given me just now.

As far as I understand some files will be shown. Right?  YES

Are all videos in the same format?

 NO - THE FILES I CAN SEE ARE ALL EITHER:  IMG_12234_.MOV OR MVI_1234_MOV OR MP4

THE FILES I CANNOT SEE ALL: MVI_1234_AVI

Are they in other apps visible?  GOOD ?  NOT SURE WHAT YOU MEAN BY OTHER APPS BUT WHEN I VIEW SAME GRAYED OUT PREVIEWS IN FINDER - THEY ARE ALL VISIBLE.

[kayak107]

[kayak107]

trying a diferent browser now.  are you receiving this?