Library module - Imported Videos in LR 14.2 Mac won't play (2025)

All of the videos in my Lightroom Catalog will not play when I double-click on them. Mac OS 13.6.7 , 3 GHz 10-Core Intel Xeon W
i get either a photo without video controls, or a black screen. If I show the videos in the finder, I am able to open and play them with Quicktime player.

What can I do?

In addition, there are videos and live photos from my iPhone which will not import

Here is the error message:
There is a problem with the video file (10)
/Users/kathryn/Desktop/iPhone to LR /IMG_3129.MOV
/Users/kathryn/Desktop/iPhone to LR /IMG_6152.mov
/Users/kathryn/Desktop/iPhone to LR /IMG_4323.mov
/Users/kathryn/Desktop/iPhone to LR /IMG_1152.mov
/Users/kathryn/Desktop/iPhone to LR /IMG_6187.mov
/Users/kathryn/Desktop/iPhone to LR /IMG_6186.mov
/Users/kathryn/Desktop/iPhone to LR /IMG_4321.mov
/Users/kathryn/Desktop/iPhone to LR /IMG_3131.MOV
/Users/kathryn/Desktop/iPhone to LR /IMG_3130.MOV
/Users/kathryn/Desktop/iPhone to LR /IMG_3132.MOV

Here they are in the finder:

Thanks.

First troubleshooting steps:

1. Restart your computer. Do they play?

2. Do the LR menu command Help > System Info and copy/paste the entire contents here so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.

3. Upload one of the problem videos to Wetransfer, Dropbox, Google Drive, or similar free service and post the sharing link here (or send it to me in a private message) and we can see if they play in other LR configurations.

1. They did not play after a restart

2.
Lightroom Classic version: 14.2 [ 202502071718-3869eef7 ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 13
Version: 13.6.7 [22G720]
Application architecture: x64
Logical processor count: 20
Processor speed: 3.0GHz
SqLite Version: 3.36.0
Power Source: Plugged In, 100%
Built-in memory: 65,536.0 MB
Dedicated GPU memory used by Lightroom: 50.3MB / 16,368.0MB (0%)
Real memory available to Lightroom: 65,536.0 MB
Real memory used by Lightroom: 3,664.3 MB (5.5%)
Virtual memory used by Lightroom: 59,276.6 MB
Memory cache size: 6,584.8MB
Internal Camera Raw version: 17.2 [ 2155 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 0MB / 32767MB (0%)
Camera Raw real memory: 2MB / 65536MB (0%)

Cache1:
NT- RAM:0.0MB, VRAM:0.0MB, Combined:0.0MB

Cache2:
m:6,584.8MB, n:0.0MB

U-main: 438.0MB

Standard Preview Size: 1024 pixels
Displays: 1) 5120x2880, 2) 5120x2880

Graphics Processor Info:
Metal: AMD Radeon Pro Vega 64
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Volumes/KW Raid/D65_BEST/D65_BEST_LR5/LR Catalog v13/D65_BEST_LR_CC-2-2-v13-3.lrcat
Settings Folder: /Users/kathryn/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Blurb BookSmart
4) DxO PhotoLab 5
5) DxO PhotoLab 5 Importer
6) Flickr
7) HDR Efex Pro 2
8) Plugin Parameters
9) Topaz Photo AI

Config.lua flags:

3.
This short video wouldn't import https://www.dropbox.com/scl/fi/ku28...3129.MOV?rlkey=27g45rx5vnds3qv4bd8c3xtv4&dl=0

I will send a link to a video in the catalog wouldn't play - I will do that later.

Thanks.

That video imports and plays in my LR 14.2 / Mac OS 15.2 / Apple M2 Max.

Metal: AMD Radeon Pro Vega 64

Click to expand...

Try setting Preferences > Performance > Use Graphics Processor to Off -- does that fix the issue?

That graphics processor is eight years old. AMD stopped updating its drivers two years ago (and you're on a two-year-old version of Mac OS), so it's possible LR is tripping over bugs in the graphics driver that will never get fixed.

I have no problem importing and playing the "MOV " file. This one was 1/10 sec in length. Are you sure this is not playing? It is very fast and you need to be quick to see the action.

My specs are similar to John's (LR 14.2 / Mac OS 15.2 ) If you can install v14.2, why are you still running MacOS v13? I would begin with an upto date OS. This will update any GPU drivers as well