Cannot open ....DNG file due to disk error.

[Troutt_Photography]

Using Mac Catalina 10.15 with the latest update of PS 21.0.1 and Lightroom Classic 12.0.  When ever I try to import a file from Lightroom via "Edit in Adobe Photoshop 2020..." like I always have done I can not get the file to open in PS.  I get one of two things.  A: Cannot open file ****.dng due to disk error or B: literally nothing happens.  I did not have this issue before the upgrade.  Additionally I attempted to uninstall the current version of PS and go back one version and it is giving me the same issue.  One thing I did note was that when I opened LR for the first time after the update it had me upgrade the Catalog folder and gave it a new name.  Anyone else having this issue or have a work around?

[Subject edited by moderator. "DMG" changed to "DNG"]

[DMG is a disk mountable image in macOS; DNG is a digital negative file]

[JJMack]

Did you check your disk to see if there are problems. Is the message correct or not correct.

[Troutt_Photography]

I ran the Mac Disk Check and it didn't show anything wrong.  So far all the files open up in Lightroom as well so as far as I can tell it should all be good to go.

[Troutt_Photography]

At this point I have unistalled both PS and LR and reinstalled but getting the same errors.  Not sure what else I can do at this point.

[Troutt_Photography]

Just figured out the solution.  Went to System Preferences Security and Privacy and added Photoshop to have access to my Harddrive and now it is working.  

[Bogiebooo]

I am having the same problem..Just started out of the clear blue and only on my Mac Book not on the iMac.  started after I upgraded PS to the newest update.  I went to privacy setting but can't figure out how to add PS.  

[mårtenm14189584]

I had the same problem. This sorted things out for me. Thank you!

[qdvvuis]

Thank you Troutt! I spent over two hours and couldn't fix the disk error problem. I knew it has something to do with the Mac upgrade, but couldn't figure it out. Thanks to your message and share the solution.