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bw17895662
bw17895662
Participant
January 4, 2022
Question

Constant, rapid memory leak then crash after creating slideshow

  • January 4, 2022
  • 1 reply
  • 273 views

Lightroom Classic 11.1, MacOS Monterey 12.0.1, M1 Max MacBook Pro

 

The following is repeatable for me and leads to a constant and rapid memory leak that will consume all avaiable system memory:

1. Add around 250 photos and some videos to Quick Collection. Select Quick Collection

2. Select slideshow. Run the slideshow

3. Lighroom will now leak memory at a rate of several GB per minute until all system memory is exhausted. Attempting to quit the application will hang with a spinning beachball. Memory continues to leak while the application is unresponsive until it's forced to quit.

4. Now whenever I start Lightroom the same behaviour occurs - it begins leaking memory immediately, regardless of whether I attempt to run the slideshow or not

5. The only way to fix this is to start Lightroom, quickly clear the Quick Collection, then force quit. Lightroom is now back to normal.

 

In anticipation of the initial response I have reset Lightroom settings using the Opt/Shift on startup, and the above still occurs.

 

 

1 reply

Ian Lyons
Community Expert
Ian LyonsCommunity Expert
Community Expert
January 4, 2022

I have a MacBook Pro M1 Pro with 32GB of ram and an Mac mini M1 with 16GB of ram and can't reproduce the memory leak issue you describe. However, I am using macOS Monterey 12.1, which addresses two of the known memory leaks that affect applications runing on Monterey 12.0.1. Is there a reason you haven't upgraded to 12.0.1?

 

More details on the 12.0.1 memory leaks and the various outworkings of same.

 

https://eclecticlight.co/2021/11/15/montereys-memory-leak-and-how-to-avoid-it/

https://eclecticlight.co/2021/11/22/more-memory-leaks-in-monterey-12-0-1-how-to-avoid-them/

https://eclecticlight.co/2021/12/13/apple-has-released-monterey-12-1-update-and-security-updates-for-big-sur-and-catalina/

 

 

bw17895662
bw17895662Author
Participant
January 4, 2022

Hi,

 

Many thanks for the reply and for taking the time to try to reproduce the issue. No specific reason why I've not updated to 12.1other than I prefer not to have the OS update automatically as I have found in the past that this tends to cause more issues than it resolves. I will update to 12.1 and see if it makes any difference, but I did research various posts like the above before posting here and I'm sure neither of those situations (change to default mouse pointer and Control Centre leak) is the issue in this case.

P
Pl_Fu7796
Participant
October 28, 2025

Hi!
I’ve just run into exactly the same issue you described — constant and rapid memory leak when entering the Slideshow module in Lightroom Classic (mine’s version 14.5.1 on macOS Sequoia 15.4.1, M2 Mac mini).

I saw your post and it matches my case 1:1, including the Quick Collection triggering the leak and Lightroom crashing until I clear it.

Did you ever find a permanent fix or workaround for it?
(Updating macOS didn’t seem to change much for me yet.)

Thanks in advance — I really appreciate any follow-up you can share! 🙏

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