P: LrD v9.4 on macOS crashes, or does not launch

Same Problem Here with LR 9.4.1.

How can we fix it as I even don’t see any window opening….

LRC ok

I am having this same issue, updated computer to Tahoe to see if that would help and it does not. My log console is this:

“ 2026-06-28 14:50:21.326 Adobe Lightroom[2612:42520] Lightroom version: 9.4 [ 20260610-2051-a96e304 ] (Jun 10 2026)
objc[2612]: Class SODSFileDecode is implemented in both /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/WichitaFoundation.agtoolkit/Versions/A/WichitaFoundation (0x1034cb400) and /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/CameraRaw.lrtoolkit/Versions/A/CameraRaw (0x1322f2450). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[2612]: Class _GPUOperator is implemented in both /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/WichitaFoundation.agtoolkit/Versions/A/WichitaFoundation (0x1034cb478) and /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/CameraRaw.lrtoolkit/Versions/A/CameraRaw (0x1322f24c8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[2612]: Class _CPUOperator is implemented in both /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/WichitaFoundation.agtoolkit/Versions/A/WichitaFoundation (0x1034cb4c8) and /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/CameraRaw.lrtoolkit/Versions/A/CameraRaw (0x1322f2518). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[2612]: Class VFExporterMessageDelegate is implemented in both /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/CameraRaw.lrtoolkit/Versions/A/CameraRaw (0x1322f2540) and /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/video_toolkit.agtoolkit/Contents/MacOS/video_toolkit (0x11a467d28). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[2612]: Class VFTools is implemented in both /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/CameraRaw.lrtoolkit/Versions/A/CameraRaw (0x1322f2590) and /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/video_toolkit.agtoolkit/Contents/MacOS/video_toolkit (0x11a467dc8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[2612]: Class VFExporter is implemented in both /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/CameraRaw.lrtoolkit/Versions/A/CameraRaw (0x1322f25e0) and /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/video_toolkit.agtoolkit/Contents/MacOS/video_toolkit (0x11a467e18). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
2026-06-28 14:50:21.596 Adobe Lightroom[2612:42520] Lightroom requires write permission to the folders { /Users/madelynthomae/Library/Logs/Adobe/LogTransport }. Please make sure you have read/write permissions to the folders and all its subfolders, and you have cleared the existing ACLs to the folders and all its subfolders.
DUNAMIS SessionID: EEEBBA03-6FC1-439F-87DF-EE4F1C7B311A
2026-06-28 14:50:21.678 Adobe Lightroom[2612:42520] ?:0: attempt to index a nil value
    0: field    getApplicationRect             - 1225013964:1139+6
    1: upvalue  ?                              - 1874371548:54+6
    2: field    make                           - 1874371548:212+2
    3:          [unnamed]                      - 1621067043:586+673
    4:          [unnamed]                      - tail
    5:          [unnamed]                      - 227279759:923+266
    6:          [unnamed]                      - tail
    7:          [unnamed]                      - 1518457791:153+100
    8: upvalue  ?                              - C
    9: field    pcall_noDebugger               - 369596259:655+9
   10:          [unnamed]                      - 1518457791:676+7
   11:          [unnamed]                      - tail
   12:          [unnamed]                      - 887551245:1291+15
   13:          [unnamed]                      - tail
   14:          [unnamed]                      - tail
   15:          [unnamed]                      - tail
   16: upvalue  ?                              - 1140580395:54+107
   17:          [unnamed]                      - 1140580395:171+15
---------------------------------
_LSOpenURLsWithCompletionHandler() failed for the application /Applications/Adobe Lightroom CC/Adobe Lightroom.app/Contents/Frameworks/AdobeCrashReporter.framework/Versions/A/Adobe Crash Processor.app/Contents/MacOS/Adobe Crash Processor with error -1712.”

I checked the one where it says no write permission and that folder has read &write permission to the system user, I do not see my username in that file info.

Thanks!

Same here with 9.4, reverting to 9.3 makes it work again, but after upgrading to 9.4 it fails again.

Turns out the problem for me was the previously benign file permissions issue that Lr always complained about but could never repair even though I clicked repair every time.  I manually went to 

/Users/[user name]/Library/Logs/ and added read/write permission for my user and this went away and now 9.4 works

Lightroom CC doesn’t fully boot at all anymore on my Macbook Pro. I’m not receiving an error message—it just immediately closes. I’ve restarted my laptop, uninstalled and reinstalled Lightroom via CC, and Reset Preferences (option + shift). 

Any help would be appreciated! 

My crash issue doesn’t even have an error message at all - just won’t even boot at all.  When I pull up the activity monitor, it says there is a crash, but not sure what it means.

I un-installed LRCC via creative cloud, and reinstalled.  Same issue as before.  No idea what’s happening.

Happening to me also - LRCC won’t even boot up at all.  Brand new Macbook Pro all up to date.  Just started happening a few days ago.  Been using LRCC on this computer with no issues until this week.

Moderators, ​@Rikk Flohr_Photography, please move this post to:

Lightroom ecosystem (Cloud-based) | Adobe DME

same issue here