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francescor34253227
Known Participant
March 16, 2026
Question

Lightroom Classic crashes or freezes at ~15% when exporting slideshows

  • March 16, 2026
  • 1 reply
  • 42 views

This problem hasn't been resolved for years. Can anyone help me? My patience with Adobe is running out. It seems like a very serious problem. Every time I launch export, Lightroom Classic gets stuck at about 15%.

    1 reply

    Srishti_Bali
    Srishti_Bali
    Legend
    March 16, 2026

    Hi ​@francescor34253227 

     

    Sorry you're running into this. Let’s try to narrow it down. Could you provide a few more details?

    • System Info from Lightroom's Help Menu (Help > System Info > Copy, Paste it here)

    • Whether the slideshow uses video clips or only photos.

    • The export format and resolution you're choosing.

    • Whether this happens with all slideshows or just one specific catalog/project.

    Also, please let us know whether you’ve tried exporting a very small test slideshow (2–3 images) and whether it still stops around 15%. These details will help us understand the issue and help you accordingly. 

     

    Regards,

    Srishti

    F
    francescor34253227Author
    Known Participant
    March 17, 2026

    Hi Srishti,

    thanks for answering me.

    • I use only photos
    • 1080 p (16:9), but I try also 720p
    • File format .mp4
    • It happens with all slideshows (with music, without music, with 5 photos or 150 photos). It always gets stuck in the same place (at about 10%)
    • Below are my system data

     

    Please help me… :o(

     

     

    Versione di Lightroom Classic: 15.2 [ 202602111402-ec4112e8 ]
    Licenza: Creative Cloud
    Impostazioni lingua: it-IT
    Sistema operativo: Mac OS 26
    Versione: 26.3.0 [25D125]
    Architettura dell'applicazione: arm64
    Conteggio processore logico: 8
    Velocità processore: NA
    Versione SqLite: 3.36.0
    Versione Adobe GSDK: 1.4.0.171

    Memoria integrata: 16.384,0 MB
    Memoria GPU dedicata usata da Lightroom: 1592,2MB / 12.124,1MB (13%)
    Memoria reale disponibile in Lightroom: 16.384,0 MB
    Memoria fisica usata Lightroom: 1150,2 MB (7,0%)
    Memoria virtuale usata Lightroom: 435.475,0 MB
    Dimensione cache memoria: 320,0MB
    Versione Camera Raw interna: 18.2 [ 2482 ]
    Numero di thread massimo utilizzato da Camera Raw: 5
    Ottimizzazione SIMD Camera Raw: SSE2
    Memoria virtuale di Camera Raw: 254MB / 8191MB (3%)
    Memoria reale di Camera Raw: 255MB / 16384MB (1%)

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

    Cache2: 
    m:320,0MB, n:0,0MB

    U-main: 141,0MB

    Lato maggiore Anteprime standard: 2560 pixel
    Monitor: 1) 2560x1440

    Informazioni processore grafico: 
    Metal: Apple M1
    Stato iniziale: GPU per l'esportazione supportata per impostazione predefinita
    Preferenze utente: Automatico 
    Abilita HDR in Libreria: DISATTIVA
    GPU per la generazione dell'anteprima:Automatico (S5_11)

    Cartella applicazione: /Applications/Adobe Lightroom Classic
    Percorso libreria: /Volumes/Lightroom/Catalogo Fotografie/Catalogo Fotografie/Catalogo Fotografie.lrcat
    Cartella impostazioni: /Users/checcomini/Library/Application Support/Adobe/Lightroom

    Plug-in installati: 
    1) AdobeStock
    2) Flickr
    3) jb: Search+Replace
    4) Plug-in unità di importazione Aperture/iPhoto 

    Indicatori Config.lua: 

    Sameer K
    Community Manager
    Sameer KCommunity Manager
    Community Manager
    March 31, 2026

    Thanks, ​@francescor34253227, for sharing the additional info. Here are a few things you can try: 

    1. Create a new test catalog on the internal drive and check if it helps.
    2. Disable any 3rd-party plugin when you use the new test catalog. 
    3. Make sure Lightroom has Full Disk access: 
    4. Try using Lightroom Classic in Rosetta mode on Apple Silicon and check how it goes. https://support.apple.com/en-us/102527

    Let me know how it goes. 
    Thanks!
    Sameer K

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