Custom Camera Profile Disables External Editing?

Question

I'm using Lightroom 5 and Photoshop CS5.  The problem is that if I apply a custom camera color profile created by X-Rite Passport Color Checker, I can no longer use an external editor, such as Photoshop, to edit my photos.  Before I apply the custom profile, the external editor function works just fine.  If I apply a custom profile in the Camera Calibration panel, then the ability to use external editors no longer works.  There is no error message, but nothing happens when I try to edit in an external editor.  If I go back and turn off the custom profile and go back to Adobe Standard, then the external editor function works again.  What is going on?  Is there a way to make it possible to apply a custom profile in Camera Calibration and still be able to use the external editors?

Answer 1

A suggestion: it sometimes happens that the main "edit in PS" function gets.. a bit confused. I agree with the other posters that it's critical which program is to render your image to an editable state (ACR, or LR)... which also means, whether PS is going to simply open up an already-saved file from disk, or be passed instructions to have ACR make it an unsaved image in memory.
Perhaps there is some issue with ACR seeing the folder where Passport is saving its special camera colour profiles via LR - the more standard ones are located in a structure shared by both programs, the same as with lens profiles. This will only be a difficulty, if it is ACR which is trying to do the job of rendering the image.
Just to clarify: normally when we say LR version such-and-such is compatible with ACR version such-and-such, we are assuming that the latest available Process Version is being used within Lightroom. For any individual image which happens to be set to an earlier Process Version, the compatibility with ACR operates, as if an earlier version of LR was being used. So (for example) one image using PV 2012 would get necessarily rendered by LR when you selected "Edit in PS" with PS CS5, because that is known not to support PV2012. But another image using PV2010 might get sent directly to CS5's ACR within the same setup (provided not earlier than 6.7), without giving the option, since that version of ACR IS known to support that generation of image adjustments.
To troubleshoot whether external editing is or is not possible, it can be helpful to set up Photoshop manually as a LR external editing preset (I find this useful anyway). This is done within the lower, "additional" part of the External editing tab in LR Preferences. By browsing direct to the Photoshop executable, you can specify whether 32-bit or 64-bit, also set up the bitdepth and colourspace, and explicity name that. When this name is then selected against an image from the "Edit in..." context menu, it is definitely Lightroom that renders the image - you can be sure that ACR is not involved.
If Lightroom cannot render an image under such an external editing preset, save it to disk / add a new imported image version, and have PS open that, when a {Passport profile is selected - but those things can happen when (say) Adobe Standard is selected, then AFAICT that narrows down on LR's ability to use the profile which Passport has made. I'd still have expected some kind of a warning message.
Even if PS was for some reason unable to open the image, but LR had definitely been the one told to render it - I would not expect to have "nothing" happen. I would expect to see a new image version in LR stacked with the original - named (by default) either [Imagename]-edit.tiff or [imagename]-edit.psd - which looked exactly the same as the current LR edits, only hard-rendered into a flat pixel file.
regards, RP