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Inspiring
Oct 29, 2019 4:57 PM UTC
Needs More Info

P: Lossy DNG compression stopped working on macOS 10.15 Catalina

Since Catalina, option to export and to Use Lossy Compression doesn't seem to work no matter the camera raw compatibility?

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5 replies

Rikk Flohr-Retired
Adobe Employee
Feb 11, 2020 2:15 PM UTC
Updates to Lightroom Classic, Camera Raw, and the Lightroom Ecosystem were released yesterday and contain a fix for this issue.  Please install the appropriate update and see if it solves this problem. You can read more about the updates here.

Thank you for your patience. 
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Rikk Flohr: Adobe Photography Org
Smit K
Participating Frequently
Oct 30, 2019 4:31 AM UTC
Hi,

We have logged a bug for this and this happens on both Windows and macOS (Catalina and older)

Thanks,
Smit
Lightroom Classic team
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Smit | Lightroom Team
Adobe Employee
Oct 30, 2019 3:02 AM UTC
Hi Marco,

I am also able to reproduce this issue. Once I click on an Export Preset, I am not able to check "Use Lossy Compression". We will file a bug and investigate it further.

Thanks,
Chinoy
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Inspiring
Oct 29, 2019 7:38 PM UTC
I just discovered it works for me too, if I use the export preset I made before, but if one starts fresh from lr export presets, the tick box Use Lossy Compression doesnt seem to respond. Its probably just gui bug?
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Rikk Flohr-Retired
Adobe Employee
Oct 29, 2019 6:54 PM UTC
It appears to be working for me Marko. What happens when you try? Error? Silent Failure? Something else?
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Rikk Flohr: Adobe Photography Org