P: Unable to relaunch after File>New Catalog/Switching catalogs, or relaunching with certain plugins

[Poutchiou]

Hello, I just updated LR Classic from v14.4 to v14.5 on Windows 10.
I’d like to report a major bug:

• It is impossible to create a new catalog from within the application (Menu > File > New Catalog).
• It is impossible to switch catalogs (except by clicking directly on the catalog file to open the application).

The window App closes, then nothing happens for several minutes (Task Manager shows a "zombie" Adobe process still running) → I have to kill It to reOpen the app.

I had to reinstall version 14.4 and everything is now working normally again.

[JBedfordPhoto]

After the latest update, LR Classic has been buggy...When I go to relaunch Lightroom after it hangs, it never comes to the front on appears on the tool bar (Windows). After double-clicking the program a few times, nothing happened. I then look in Task Manager to discover there are multiple instances of LR open, but none are appearing on screen. I have to right click each instance to exit them directly within Task Manager. Once they're all closed, I can then reopen LR as normal. 

Previously, the LR Classic catalog would not allow for multiple instances of LR to be open at the same time, hence classifying this as a bug.

[Christopher_Chase3213]

Been using Tourbox Console for about a year now in Lightroom Classic with no isses. Now with the new Lightroom update 14.5 program when running Tourbox, Lightroom will not close on it own. Hangs forever and I have to force close Lightroom. Tourbox works with Lightroom, all shortcuts, etc. so no issues with functionality just hanging on shutdown of Lightroom. I've disabled Tourbox plugin and Lightroom works as normal. Updated and reinstalled Tourbox and Plugin but same thing. Any help would be greatly appreciated.

[Sacha Duvivier]

I have the same problem.

[JohanElzenga]

Known issue. Merged with the existing bug report.

[mychin_Photo]

I'm also using TourBox 5.9.2. I'm glad to know that the reason Lightroom 14.5 couldn't close was due to the TourBox plugin.

[nikunj.m]

Hi, thanks for reaching out!

Please go to the Help menu in Lightroom Classic, then System Info, and copy the text. You can share the info with us by either pasting it as a reply here or in a text file and sharing the file with us. Where are you creating the catalog? 

Meanwhile, you can try to reset the preferences of Lightroom using the steps mentioned here: https://adobe.ly/4lypu4c

Thanks,
Nikunj

[neilacc]

Hi - Mac user, latest OS, Latest LR, M1 machine. I cant quit LR, I can only close it if I force quit. Tried a fresh install, resetting preferences and disabling GPU. Nothing is working, any suggestions would be greatly appreciated.

[Christopher_Chase3213]

Lightroom Classic version: 14.5 [ 202508061311-4cef2162 ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 15
Version: 15.6.0 [24G84]
Application architecture: arm64
Logical processor count: 12
Processor speed: NA
SqLite Version: 3.36.0
Built-in memory: 65,536.0 MB
Dedicated GPU memory used by Lightroom: 16,984.3MB / 49,152.0MB (34%)
Real memory available to Lightroom: 65,536.0 MB
Real memory used by Lightroom: 4,697.5 MB (7.1%)
Virtual memory used by Lightroom: 424,619.8 MB
Memory cache size: 4.3MB
Internal Camera Raw version: 17.5 [ 2318 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 1000MB / 32767MB (3%)
Camera Raw real memory: 1272MB / 65536MB (1%)

Cache1:
Final1- RAM:1,107.0MB, VRAM:13,161.0MB, DSC_8554.NEF
NT- RAM:1,107.0MB, VRAM:13,161.0MB, Combined:14,268.0MB

Cache2:
m:4.3MB, n:188.7MB

U-main: 73.0MB

Standard Preview Size: 3840 pixels
Displays: 1) 3840x2160

Graphics Processor Info:
Metal: Apple M2 Max
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF
GPU for Preview Generation: Auto (S5_48)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/christopherchase/Pictures/Jon-Emily-Photoshoot/Jon-Emily-Photoshoot.lrcat
Settings Folder: /Users/christopherchase/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Flickr
4) Impossible Things
5) Impossible Things Help
6) TourBox

Config.lua flags:

[Christopher_Chase3213]

I create seperate catalogs for each client shoot and store them on the internal Mac hard drive while working on them.

[Aleke]

Hi @neilacc, welcome to the community!

Could you share a few more details about the issue? When you say you can’t quit Lightroom, do you mean the app completely freezes? Does it happen randomly or after using a specific tool? Also, it would be super helpful if you could share your System Info.

You can find it in Lightroom by going to Help > System Info. Just copy the info into a text file and attach it to your reply, or feel free to share it through Google Drive, WeTransfer, or any other file-sharing platform.

Thanks so much! 
Alek

[neilacc]

Hi @Aleke - The app freezes and I get the spinning beach ball - It happens all the time, not after any specific tool. LR works fine, I can do everything I need to do on it, but I just cant quit and have to force quit each time. I've tried to attach the text file but it says its not supported so i've pasted the info...Thanks for your help.

Lightroom Classic version: 14.5 [ 202508061311-4cef2162 ]
License: Creative Cloud
Language setting: en-GB
Operating system: Mac OS 15
Version: 15.6.0 [24G84]
Application architecture: arm64
Logical processor count: 20
Processor speed: NA
SqLite Version: 3.36.0
Built-in memory: 131,072.0 MB
Dedicated GPU memory used by Lightroom: 7,952.2MB / 98,304.0MB (8%)
Real memory available to Lightroom: 131,072.0 MB
Real memory used by Lightroom: 5,405.4 MB (4.1%)
Virtual memory used by Lightroom: 416,125.1 MB
Memory cache size: 222.1MB
Internal Camera Raw version: 17.5 [ 2318 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 868MB / 65535MB (1%)
Camera Raw real memory: 1064MB / 131072MB (0%)

Cache1:
Final1- RAM:339.0MB, VRAM:1,642.0MB, A1_00178.ARW
Final2- RAM:542.0MB, VRAM:4,496.0MB, A1_00132.ARW
NT- RAM:881.0MB, VRAM:6,138.0MB, Combined:7,019.0MB

Cache2:
m:222.1MB, n:331.3MB

U-main: 105.0MB

Standard Preview Size: 3840 pixels
Displays: 1) 3840x2160, 2) 3840x2160

Graphics Processor Info:
Metal: Apple M1 Ultra
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF
GPU for Preview Generation: Auto (S5_96)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Volumes/RAID - BackUP/August 25/25.08.19-SusanTom/SusanTomCat/SusanTomCat.lrcat
Settings Folder: /Users/neilatkinson/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Calibrite Camera Calibration
4) DxO PureRAW 2
5) DxO PureRAW 2 Importer
6) DxO PureRAW 3
7) DxO PureRAW 3 Importer
8) DxO PureRAW 4
9) DxO PureRAW 4 Importer
10) DxO PureRAW 5
11) DxO PureRAW 5 Importer
12) Flickr
13) Impossible Things
14) Impossible Things Help
15) LogiOptions
16) Luminar 4
17) Luminar AI
18) Luminar Neo
19) Neurapix SmartPresets
20) ON1 Photo RAW 2019
21) ON1 Resize 2019

Config.lua flags:

[Aleke]

Hey @neilacc, thanks a bunch for sharing your System Info!

When you get a chance, could you try disabling your plugins one at a time to see if performance improves? Just in case one of them might be causing the issue. Appreciate your help with testing this out!

Alek

[GoldingD]

Following may have nothing to all to do with your problem, however, Notice that you have some plugin duplicates, or more specifically, older versions. The DXO Pure RAW for example. This might not hurt performance, but, your catalog is a database and may not take kindly to clutter. You may want to consider removing the older copy's.

[Jbradc_PhotoGuy]

I am running Lightroom Classic 14.5 on a 2025 Mac Studio with M4 Max processor and 36GB of RAM.  Everytime I try to close the app it just hange (spinning beachball) and I have to force quit it.  I have reset the app preferences, disabled plugins and even uninstalled and reinstalled LrC and nothing has fixed it.  Any ideas?  Thanks all.

[mychin_Photo]

If you’re using the TourBox app, make sure to quit TourBox before closing LrC14.5.
That solved the issue of LrC 14.5 hanging for me.

[faneuil]

yep - 3:30 AM and just found the same problem 

Can't quit LR with MIDI2LR enabled

[Alain_BARRAU6696]

bonjour depuis peu je ne peu plus fermer LRC correctement. Je suis obligé de forcer l'arret. J'ai la derniere version mac sequoia 15.6 sur mac studio M4 36 gb. J'ai aussi la derniere version LRC.

[neilacc]

Hi - I've tried everything that has been suggested but still my issue persits - any other ideas??

[adrianr78260661]

Revert back to the older version of LRC 14.4  everything will work fine

[jacquesf88225662]

Every time I quit Lightroom Classic 14.5, it freezes, and I have to Force Quit.

I have reset the LRC preferences & uninstalled, then re-installed.

I have an Apple M2 Pro Mac mini with 32 GB RAM running macOS 15.6

Here is a copy of the LRC System Info

Lightroom Classic version: 14.5 [ 202508061311-4cef2162 ]
License: Creative Cloud
Language setting: en-CA
Operating system: Mac OS 15
Version: 15.6.0 [24G84]
Application architecture: arm64
Logical processor count: 12
Processor speed: NA
SqLite Version: 3.36.0
Built-in memory: 32 768,0 MB
Dedicated GPU memory used by Lightroom: 453,4MB / 21 845,3MB (2%)
Real memory available to Lightroom: 32 768,0 MB
Real memory used by Lightroom: 1 987,6 MB (6,0%)
Virtual memory used by Lightroom: 413 363,7 MB
Memory cache size: 402,0MB
Internal Camera Raw version: 17.5 [ 2318 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 5MB / 16383MB (0%)
Camera Raw real memory: 8MB / 32768MB (0%)

Cache1:
NT- RAM:0,0MB, VRAM:0,0MB, Combined:0,0MB

Cache2:
m:402,0MB, n:0,0MB

U-main: 150,0MB

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

Graphics Processor Info:
Metal: Apple M2 Pro
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF
GPU for Preview Generation: Auto (S5_21)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Volumes/Photo/Lr_Catalog/Lr_Catalog-Master-v13-3.lrcat
Settings Folder: /Users/jlf/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Canon Print Studio Pro
4) Flickr
5) Nik 7 HDR Efex
6) Plugin Parameters
7) Topaz Photo AI
8) Tourbox

Config.lua flags:

Thanks for any suggestions

[Mark Cohran]

After updating to the latest version of Lightroom Classic, on quit it stopped responding after saving the backup file. A forced quit is required to end the program. After much troubleshooting, I've narrowed it down to the Tourbox Console Plugin. Updating the plugin doesn't resolve the conflict. Disabling the plugin prevents the hanging quit (after LR is restarted without the plugin enabled). Has anyone else encountered this issue or found a workaround?

[DdeGannes]

Please explain what editing work you have done prior to your decision to quit the application.

Have you selected to backup your Catalog, and have you checked to test integrity and optimize catalog?
 I have noticed a delay in the starting of the backup process when I have used the Denoise process.

The process takes a couple of minutes to start and to complete the process, but I have not had to force quit.

Have you received any error messages?

[jacquesf88225662]

Only slight editing: exposure, clarity, some masking for local adjusments.

No denoise. No error messages. 

The problem has been present for a few days. I have optimized the catalogue and done a weekly backup with no problems. It's only when I'm finished, and want to quit the application that it just freezes, and I need to Force Quit.

Any thoughts?

[jacquesf88225662]

Thank you for the insight on the Tourbox console plugin. 
I use it regularly, and will investigate. 

[JBedfordPhoto]

usually a catalog LOCK file prevents multiple instances of LRC from running...not the case anymore (yet all seem to be running as phantom apps, never appearing in the foreground).