There are any number of Cloud-based solutions here. Depending on your need and other factors, Creative Cloud or Dropbox could work. ... View more

Simon you need to reconnect to the raw image file as Johan mentioned above by clicking on the exclamation mark in the top right corner of the thumbnail above . . . ... View more

I have done this (albeit on a Mac if that helps) using a great tool called Find File, and then gone back into LR and edited the appropriate catalogue thumbnail. The Mac "search" tool didn't/doesn't work well for me. ... View more

Per Bersten wrote: In a color managed workflow, embedded profiles don't need to match the working space, and workings spaces don't need to match between applications. Images will display correctly regardless. The only exception is viewing Adobe RGB images on a standard gamut monitor (which has roughly an sRGB gamut). If the image contains colors that cannot be reproduced in sRGB, they will be clipped to sRGB. That may be the case but I would still subscribe to the idea that when two files contain miss-matched colour profiles, that journey to delivery platform can produce results that clip and shift colours. I read that the OP was seeing that above, hence my 2¢ worth. Whether or not we agree it includes such saturation shift is perhaps still yet to be determined here Per  . ... View more

Josh Do you use Snapshots at all? These of course are limited, but can still be accessed in Adobe Camera Raw as you edit . . . ... View more

Are you using a colour management strategy or colour profiles actively in Photoshop? Have these got into your workflow between PS and LR? and embedded some profiles and in images that have produced the over-stauration? ... View more

Which OS please? ... View more

It sounds like to me that you are/have mis-used an Adjustment Brush perhaps? Do you have more than 1 panel in the Develop Module open while you edit, or have you turned on Solo mode for that Panel set? ... View more

Are the resulting duplicate images identical in histogram and look on your screen, but still have different exposure settings? ... View more

Post a screen shot please? It reads (above) like that you would see the missing menu choice when you context-click the file but it would be nice to see that. ... View more

I'm wondering if you did a LR backup before the migration ? Can you access that backup? ... View more

Does your NAS go into a sleep mode perhaps during a long process? I have had similar issues with a LaCie NAS I use, but its difficult to diagnose the actual issue as the NAS OS is somewhat hidden. ... View more

Fair enough: I can see that, but is my point of working on two separate virtual copies irrelevant Johan? I don't use a cloud storage service BTW. ... View more

Have you tried virtual copies? ... View more

A solution would be to create a Smart Collection, and then use the metadata in each image to target that image to that Smart Collection. This would mean however that a little leg work would need to done with the metadata either during import or later. In this instance for you "nothing ventured nothing gained" applies here perhaps! You would however need to develop a collection naming system (nomenclature) as you cant duplicate names of course . . . I hope this gives you an option. ... View more

I would create an Export Preset for that purpose. ... View more

Chris Are you doing this from inside Lightroom? The screen shot isn't definitive perhaps. That is to say are they in a LR catalog already? ... View more

I really feel your frustration at witnessing the corruption of your files, DallasJoeT, and I am sure many photographers would feel the same way. This is the worst realisation of sorts, and while I can sympathise, I get that you are looking for a solution and we will try to find one. With my equipment I have couple of SD slots in both Nikons I use, and the menu system with those allows me duplicate each shot across the 2 cards. I am wondering if that might be something to look at in the future if possible? I hope good fortune eventually falls on your side in regard of your files. Be assured that contributors in this forum will be framing responses and some will come to fruition as a solution over time I'm sure. ... View more

How old is the Operating System on your NAS thanks? ... View more

Would I be correct in assuming you are using the trackpad to edit LR images then, not a mouse? ... View more

Could you please supply a "click-by-click" sequence as you work up to the point where your error is replicated? With respect, not 'just after a while' . . . Which type of pointing device are you using? ... View more

I use a third party photography web platform for exactly this reason, and I am sure there are others. ( I have no connection to that platform BTW) You are looking for a marketing solution. Please private message me if you like. ... View more

Has the Version 7.4 update helped your issue? Are you cabling the Nikon directly to your iMac? Can you try and report the effectiveness of using the SD card directly into the Mac perhaps? ... View more

Do you get the preview of the text watermark in the Watermark Editor after you have entered the text? ... View more

I would make two suggestions here . . . While there are several "third party" providers for the reasons you state above, I have heard that 500px.com is OK for both portfolio creation and image marketing is robust. They are also about to move to use Getty Images for the 2nd part of their provider service I believe, if that suits. And then theres Wordpress . . . Excellent free templates, customisation abilities and a plethora of reliable plugins for free. Many ISP's offer support for this with easy installation and access. Have you considered the later? ... View more

Joe as you write it sounds like to me that you have a small catalog that you are working with, and that the total number of images is also modest. If thats the case, I would suggest you make (another) new catalog and reimport your image files. Where and what are you using to store your image files after import? Is your LR catalog file set to written internally to your iMac? ... View more

Monitor calibration done? At least we could cut it out of the search for a solution for you Daniel . . . ... View more

Seconded!! Accept the catalogue upgrade as well  as learn one LR platform initially well ... View more

Are you able to alter the DJI app image file output format (and test exporting a jpg from LR) or are you limited to only DNG format with jpg preview file? I'm seeing this as resting more with the drone camera / drone app / SD card rather than Lightroom, but it would be good if your could confirm this thanks ... View more

It might help to know a little more about your system Charlie . . . and perhaps the LR version. Thanks ... View more