P: Opening multiple images as layers from Lightroom

In your video, cannot make out what the 4 photos in LrC are. Perhaps a screenshot of that

Here's my steps leading up to the issue:

• i shoot images with a Nikon D750 camera in RAW.
• I insert my memory card into my computer, select the files I need, and copy and paste them into a folder in on my iMacs SSD.
• I use "add folder" to import the images into Lightroom.
• I apply a preset to all images (exposure, contrast, lens profile, etc)
• I go through all my images and rate the images I intend to use 3 stars. As I'm doing this, I make further adjustments to individual images (color correction, etc).
• I then filter to show only images rated 3 stars.
• I select the first group of 2-10 images and open them "as layers in photoshop".
• I make edits in photoshop, then close the file (command W) and save as a tiff out of photoshop. The tiff is automatically imported into Lightroom. I rate the new edited image 5 stars and then move onto the next set of images.

Rikk Flohr,

Here a video of the issue. I dont know what steps youre looking for exactly. It doesnt happen every time, just like 1 out of every 3-10 stacks I try to open. Sometimes it seems like it happens more often than others. I will also say that I've had this same issue with two different computers (my old computer was a 2016 MBP, I cant remember all the stats). Additionally, before this session of editing, I had uninstalled both LR and Photoshop, and then rebooted my computer, and then reinstalled both.

My Stats:

Fresh install of Photoshop 22.5.0

Fresh install of "Adobe Photoshop Lightroom Classic" 10.4

MacOS Big SUr 11.5.2

to: danless06

the "Scratch Drive" was set to the smaller SDD (C:).  When I switched it to the HDD (P:), the Open as Layers in LR Classic worked perfectly.

and, earlier

I run LR and PS on Windows 10, ver. 20H2 

So Windows, that brings up Windows paging file location vs Camera RAW CACHE location.

For optimizing LrC performance, it is recommended that the Windows paging file (by default on drive C, no reason to relocate, normally) and the Camera RAW CACHE, be on separate hard drives if possible. The two will constantly compete for read/wright on the drive (while in develop). Same goes for the PS scratch disk.

Also, the Camera RAW CACHE can take advantage of being on your fastest hard drive (as does the catalog as well).

Photos can be anywhere, no speed advantage for them

I found a solution that worked for me! Maybe worth looking into if you use more than one disk drive.  I have a built in SDD that I use for Windows and my applications (C:) and a 2TB HDD for everything (P:).  On PS21, the "Scratch Drive" was set to the smaller SDD (C:).  When I switched it to the HDD (P:), the Open as Layers in LR Classic worked perfectly.  My guess is that since I was layering 459 files, the SDD didn't have a enough space to act as the Scratch Drive and was cancelling the operation.

If you run two drives like I do, the switch to the larger drive to be the Scratch Drive is really easy:

Edit / Preferences / Scratch Drive - then select the larger drive to be the Scratch Drive.

I see OS Version , PS Version Lr VersionGenerally, 

Additionally: 

CPU?

RAM?

Harddrive(s)

• Size
• Free Space
• How Connected

Step-by-step reproducible instructions would all be great to have. 

Thanks Rikk Flohr.  In my initial post, I belived I provided my OS and PS/LR version number information.

As for "Hardware," what information do you need?  My son built my machine so I don't have a brand or model number.  Can you list what specific information you need?

Based upon the past state of the reported and fixed bug referenced here, this is what needs to happen going forward. 

If you can reproduce this bug at will, we need repeatable - reproducible steps to invoke the failure. These need to be detailed and step-by-step. Included with those steps we need complete OS, Hardware and PS/LR version number information.  With that we can attempt to reproduce and get a new bug logged with the team. 

That said if multiple persons on this thread can reproduce following the same recipe, we can open an investigation bug and get the information in front of the developers. 

I can relate that during the first go-around on this issue (fixed earlier this year), I was never able to sucessfully fail (is that a legal expression) using the supplied instructions in spite of many trials. It may be some work to coax out the details necessary to expose the issue. 

While waiting for Adobe to fix this, see here for a workaround that helped others before:

https://community.adobe.com/t5/camera-raw-bugs/lightroom-classic-quot-open-as-layers-in-photoshop-quot-function-broken-after-update/idc-p/12240448#M198

[Updated link]

To build on thedigitaldog, there was a bug report from June 2020 about Open As Layers:

https://community.adobe.com/t5/camera-raw-bugs/lightroom-classic-quot-open-as-layers-in-photoshop-quot-function-broken-after-update/idi-p/12239967 

Adobe reported this as fixed in March 2021, and that bug report was closed as "Fixed".  Some users reported the problem was resolved (e.g. Bob Somrak), but there were also a couple of reports of continued problems.  This thread constitutes a new bug report.