Lightroom Classic: Crop function unusable because of lag

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  • Problem
  • Updated 4 weeks ago
  • (Edited)
  • 6
Updated to latest Lightroom Classic on 4th Nov 2019. Crop function in develop module is unusable. Significant lag between moving drag handles and any response and poor resolution.
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Tony Greatrex

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Posted 1 month ago

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1 month ago
Photo of Simon Chen

Simon Chen, Principal Computer Scientist

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Official Response
Thanks Victoria. Please give the following workaround a try:

  1. Open Lightroom.
  2. Invoke Lightroom > Preferences... menu command
  3. When the Preferences dialog appears, select the Presets tab.
  4. Click on the button labeled “Show All Other Lightroom Presets...”
  5. Lightroom will reveal the root preset folder in the Finder/Explorer.
  6. Now go to https://adobe.ly/2JW0JQA and download the config.lua file and copy it into the Lightroom preset folder that Finder/Explorer selected at step 5. 
  7. Relaunch Lr. 
  8. Invoke Lighroom>Help>System Info... menu command. If you’ve followed the above steps correctly, you should see an info section that shows the following

 

Config.lua flags: 

Develop.enablePostCropVignetteEffectDuringCrop = false

(Edited)
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