I apply a preset to batches in Library's Quick Develop that includes Auto (Latest LR Classic). But I don't see any difference between applying it to a batch of files that way, and applying it individually in Develop.  Thinking about this, I suspect this is because I don't use the ACR cache in LR. Yes, I have one set, but I have also set it to Read Only and it is empty (deliberately). I have a pretty fast computer and don't think using the ACR cache produces any noticeable speed-up for me, so I prefer to remove that unnecessary task from LR (it already has far too much to do IMO). So I presume that applying my preset with Auto in Library (with Quick Develop) makes LR render a full preview for each file as it does not have a half-baked one in the ACR cache. Am I right in my thinking or have I missed something? Bob Frost ... View more

I haven't had a crash of LR or PS for years! But then, I use Win10 which 'just works'. Happy Xmas, Bob Frost ... View more

As I've said several times before on different threads, it seems to be caused by the new Home Screen in Photoshop. So if you go to Edit/Performance/General and check the box 'Disable Home Screen', Photoshop will perform as usual. NOT a problem with LR as Andrew said. Bob Frost ... View more

Simple solution - just check 'Disable Home Screen' in Photoshop. The new Home Screen is the problem. Bob Frost ... View more

Simpler still to just check 'Disable Home Screen' in Edit/General. Bob Frost ... View more

Read previous posts. ... View more

You would have to pay an awful lot more for software without bugs; many thousands of dollars instead of a measly hundred or so!! 😉 ... View more

Read the earlier posts for solutions. ... View more

My guess is that LR and PS are produced by different teams of engineers and testers, and people testing LR are probably not going to have access to the latest beta versions of all the other Adobe products, and vice versa. So it is easy to see how this minor bug could slip through. Bob Frost ... View more

Having not had this new Home Screen for the last 30 yrs of using Photoshop, I am sure I can wait a while longer to see if it has any benefits while opening LR edits. Curious to know what aspects of it you value when editing from LR? Bob Frost ... View more

Just to be clear, I use a custom Workspace as my 'home screen' which necessitated turning off Adobe's Home Screen. Sorry for any confusion. Bob Frost ... View more

Robert, But you don't have to open Photoshop first! Just use the option Adobe have given you in Photoshop's Preferences as I said in a previous post. No work-arounds needed; just get rid of the new Home Screen, it is not needed to go from LR to PS!! Probably most PS users won't want it either; I didn't so turned it off immediately after install, before this effect became recorded. Adobe will probably have recorded this bug in PS Home screen  as a 'minor bug'; that is one for which there is an easy solution. So no rush to fix it. Bob Frost ... View more

The answer to this problem is simple: go to Preferences/General in Photoshop and tick the second option down - disable home screen. Problem solved! It's a new feature that has been added without realising it affected LR, but it is quite unnecessary so tick the box and it goes away and LR and PS work as usual. Bob Frost ... View more

Now I know why I don't get this problem! I have my own 'home' screen that I switch to immediately after installing a new version of PS. Bob Frost ... View more

I wonder why I don't have this problem? Latest LR Classic 8, Photoshop 20.01, and Win10 1809. Bob Frost ... View more

Is this a Mac only problem? Bob Frost ... View more

Ah, that is why I've never seen this. After Import I select the batch of images and apply Auto +Sharpen+Clarity using Quick Develop, but I always then render the previews while the batch is still selected, before deciding whether to do anything else. Bob Frost ... View more

In the distant past, LR didn't compress backups - it was considered too risky. But so many people asked for compression, or like me used other compressors, that Adobe decided to include compression. There have been complaints recently of problems with the decompression of LR-compressed catalogs. It seems not all 3rdparty decompressors are compatible with LR's compressed catalogs. I have suggested that Adobe include a decompressor in LR for its compressed catalogs. I can't think of any reason why it couldn't be an option in the backup dialog? Bob Frost ... View more

".......copy your images to your hard drive. In reality, that is all that Nikon Transfer does." .................................................................................... Hi Jim, I think you are being a bit harsh on Nikon Transfer2 ! It is essential that one uses the latest version that 'knows' your camera, just as you need the latest version of LR that 'knows' your camera. Transfer 2 has several options, like LR. It will rename your images during transfer. It will create a backup in a second directory. It will add copyright details or other xmp/iptc preset details. I used to use Transfer2 all the time because LR import was very flaky in the past. However, now it seems very reliable to me, so I now use LR import. One disadvantage of using LR is that it only adds copyright and other details of your raw files to the xmp sidecars; it doesn't add them to the raw files which Transfer2 does. Luckily my camera now adds copyright to the raw files in camera, or I would still be using Transfer2 to copy them. I want that data in the raw files. Like you I don't connect my cameras to LR, but I also don't let LR do anything else like applying presets while it is importing. Get the files imported safely and then start editing - safer in my view. Bob frost ... View more

Hi Todd, "Note that the Standard and 1:1 previews appear to use two separate files probably to allow discarding 1:1 previews without having to rebuild Standard previews." ............................................................................................... Are you sure about that? My impression is that when you create a 1:1 preview, LR deletes the old preview pyramid file and creates a new file with 1:1 included. LR has to update the folders and preview and root-pixel.dbs. I've just selected a folder of 69 images out of my 170K images and created 1:1 previews for them. After waiting quite a while for all read/write transactions to finish (watching with Resource Monitor), the total number of previews has not changed - I just have 69 new preview files with today's date on them... Bob Frost ... View more

"Right now the file preview system make no sense to me, at all. " ......................................................................... Maybe that's because you aren't a software engineer! Nor am I, but I don't have to understand everything in order to use it. "Why use a separate preview file if it`s just as large a file as the original, therefore just as slow to load?" .......................................................................................................... Probably because as Laura and I have said, the preview file for an image is NOT one single preview, it is collection of different sized previews for use in the filmstrip, library grid with different sizes, library loupe with fit to screen or fill screen, print views, web views, etc. Adobe describe it as the preview 'pyramid'; each preview in the file being a bigger or smaller horizontal slice of a pyramid. "Normal HD are cheap now, yes, but they`re also very slow, even in RAID array. Fast SSD are still extremely expensive and not that large(yes there are cheap SSD`s, but they are neither fast nor reliable)." ................................................................... Some experts state that the speed of the disks does not have much effect on LR; it is far more dependant on the speed of the CPU to process everything on-the-fly: even your rendered previews need processing to fit on the particular bit of your size of screen. Drag the slider on the Library Grid and the images get bigger or smaller more or less instantly. Widen the side tool sections of the Develop screen and the image gets bigger or smaller. Bob Frost ... View more

You are assuming that the previews are normal jpgs. Are they? I've seen it written that smart previews are partly-processed raw files. Not seen any statement about the ordinary previews. My preview files vary in size from 30KB to 34MB. . My acr cache files (used in Develop) take up another 200GB! You haven't mentioned them. Buy a bigger disk to store them all on. They are so much cheaper than they used to be. Bob Frost ... View more

I think you are forgetting what Laura said above - that a preview file is a collection of previews of different sizes, and I would add that if you have face recognition on, then you have another preview file for the same image with the faces on. I have 175,000 images occupying about 3.5 TB and the preview folder is about 400GB (with only a few 1:1s). That is normal as far as I know. Bob Frost ... View more

Hi John, I can see your point-of-view to some extent, but Rob's methods have got me out of hole several times over the years, and I've also done my own editing of the catalog to solve problems that LR has caused. No harder than command-line stuff in Windows. I had to use the 'screwautosync' to get rid of the 'reset' command that LR automatically puts at the top of your history if you dare to use another program - photomechanic or Exiftool - to edit metadata or keywords, and then read that data into LR. Rob's tool allows you to go back one (or more) steps in History and get rid of that command without losing your history. Obviously plugins have to be updated to keep up with new versions of LR, and sadly Rob is no longer here  to do that. His methods may not be approved by Adobe, but then neither were the views and writings of great men like Galileo who was found guilty of heresy by the Church and subjected to house arrest for the rest of his life!   Perhaps Adobe will catch up with Rob one day and provide the SDK to do these things in an approved manner! Bob Frost ... View more

Jim, Does that actually delete the history, or just put a reset command on top of the existing history? I thought it was the latter. Bob Frost ... View more

Some people don't ever delete images from their SD cards - they just buy another when one is full. That full card is your backup and can be filed away in case you need the originals again in the future. SD cards are relatively cheap these days, so this is not too expensive, compared to prices of cameras and lenses. Bob Frost ... View more

Hi John, As Rob managed to write a plugin to edit Develop History, why cannot you do it with your experience of writing plugins? Was Rob's method disapproved of by Adobe? Just curious! Bob Frost ... View more

Rob Cole had a plugin for just this purpose, so it's not impossible. I used it a couple of times. I think it was called 'ScrewAutosync'. He also had another plugin that allowed one to edit the develop history. Great pity he died. Bob Frost ... View more