4 Replies Latest reply on Jul 15, 2018 1:59 PM by DavePinMinn

    Lightroom 7.4 randomly behaving chaotically

    DavePinMinn Level 1

      This may be related to the reports of "hangs" and such, and I don't know how to characterize what I'm seeing any better than random chaos...


      7.3.1 would do bizarre things when the system was left alone - say for overnight.  There are other topics for that, and I'd learned NEVER to leave Lightroom running when I was going to be away from the system for any extended period.  This APPEARS to be something else.


      System is Windows 10 Pro, 5820 running at 4.4 GHz, 32GB of DDR4 memory, O/S, temp files, cache, and catalog on 1TB SSD. Images on 6TB,7200 rpm HDDs. 


      Upgraded to 7.4 a couple days ago.  I've been processing images from the D850, nothing interesting or unusual, just normal, ordinary Nikon RAW images.


      At what appear to be random points - not related to a specific thing I'm doing - Lightroom stops responding, takes about 15% of the CPU and around 13-15 GB of memory, and churns.  As near as I can tell, there's NO disk activity to ANY disk - not the images, not the catalog, nothing.  But, since Lightroom is shown as "not responding" in the task manager, I'm not sure if there really isn't any disk activity or if the system just can SHOW the activity 'cause it's churning.


      On the screen, I'll get a white screen with just the "Lightroom" header, then sometimes a black band with what appears to be the view information that's normally displayed on a loupe image.  Clicking on the End task (the red X in the upper right) 'causes the screen to change display, quickly flashing other partial lightroom bits like VERY large pieces of what appear to be the file menu, and other unidentifiable things.  If I try to go into Task manager, that window will alternate with a Lightroom window quickly and indefinitely.  Needless to say, there weren't going to be any screen captures while all this was going on.


      It's extremely difficult to kill Lightroom when it's doing this.  SOMETIMES I can go down to the launch bar and tell it to "Close Window", but the popup that says "Program is not responding" ALSO starts alternating with the Lightroom window, making it extremely difficult to tell it to end the program.


      During all this, the mouse is extremely unresponsive, increasing the difficulty in attempting to kill Lightroom.  SOMETIMES, I'm eventually able to select the Lightroom instance in the Task Manager and End it, but not always.


      In at least ONE case last night, there was NO visible Lightroom instance in Task Manager, but the screen continued to alternate between Lightroom and the Task Manager.  With no instance of Lightroom in the Task Manager, and no ability to Close the Lightroom instance from the launch bar, I eventually had to crash the system as I couldn't even do a clean shutdown.


      It doesn't appear to be related to doing a specific task.  On one occasion I'd selected a group of images and told Lightroom to write the metadata to the disk.  On another I told Lightroom to export a jpeg from a raw image.  On another I attempted to go from Library to Develop...  There were several other occurrences.


      After having to reboot a couple times yesterday and crash the system twice, as well as ending the Lightroom task several other times. I reinstalled 7.3.1 and I'm currently using that.  LR has been up and performing "normal" editing, culling, importing, and so on for the last couple hours without the behavior I was seeing since the upgrade to 7.4.


      I have no idea if this is the same thing other's are seeing or if it's another "unique" thing that will get blamed on something other than Lightroom, but 7.3.1 does not APPEAR to be doing the same thing at the moment.

        • 1. Re: Lightroom 7.4 randomly behaving chaotically
          dj_paige Level 10

          Some things to try:

          • make sure that face detection is turned off
          • make sure that synchronizing with Lightroom CC is turned off


          Don't say: "I never turned these on". Actually look at the settings for these features and CONFIRM that they are not turned on.

          • 2. Re: Lightroom 7.4 randomly behaving chaotically
            Ian Lyons MVP & Adobe Community Professional

            If you have any USB devices, especially disks, connected while you're seeing the behaviour, then temporarily disconnect to check whether it helps.

            • 3. Re: Lightroom 7.4 randomly behaving chaotically
              DavePinMinn Level 1

              Face detection is off.  Face detection is ALWAYS off (I don't photograph people).

              Synchronizing is off.  Synchronizing with ANYTHING is ALWAYS off.


              Have USB flash drive, and one USB SSD plugged in.  Unplugged both during the multiple reboots, crashings and bizarre behavior.  Didn't make any difference.


              SO FAR, back on 7.3.1 (which I know has it's own problems) at least I've been able to work for an hour to hour and a half without any chaos happening. 


              I can't say WHAT would happen longer than that because as I work - import images, take the whole imported set and adjust noise, turn off sharpening, set white balance, and do auto exposure, then view images, changing magnification between loupe view and 1:1, setting labels for images to keep and those to later delete Lightroom slows down.  It has ever since 7.0.  Generally, it's not bad for about 20 minutes, then it starts slowing, and by an hour or so, it's unacceptably slow moving from image to image.  I've gone so far as to CLOSE all the tabs on both side palettes 'cause updating those with every new image slows things even more. 


              I generally have to shut down Lightroom and restart it about every hour to hour and a half.  But I suspect that's a different problem since it's been there since 7.0 and continued through 7.1, 7.2, and remains in 7.3 and 7.4.  Happens on both the desktop and laptop, and its pretty consistent.


              So, I'm not sure if there's some point at which 7.3.1 will ALSO go nuts, but I know 7.4 would do it within a half hour of rebooting sometimes.  Other times it might take up to an hour.


              But, at this point, 7.4 has been out long enough, and I suspect installed on enough Windows 10 boxes, that if this was a real, widespread problem there would be a bunch of people reporting it.

              • 4. Re: Lightroom 7.4 randomly behaving chaotically
                DavePinMinn Level 1

                Purely anecdotal, but the slowdown, which gets increasingly worse as I do HDRs (probably a dozen or so) in LR, run through images in the library, change color labels, occasionally adjust one in Develop, and so on, and the eventual chaotic behavior seems to be connected to the huge amount of memory Lightroom eventually uses (well, huge to me).


                The system has 32GB of memory, and I've gotten in the habit of looking at memory usage when it starts to get REALLY slow - and by really slow I'm talking multiple seconds to change the color label on an image from 6 to 9.  Hitting the down-arrow to move down a row of thumbnails is multiple seconds.  Hitting Develop takes SEVERAL seconds to get over there.  And so on.


                Last night I started writing metadata and got a popup that it was out of memory, then it crashed.


                When I just shut it down because it wouldn't open the Photo Merge/HDR after more than 5-6 seconds, the Task Manager showed it using just under 14 GB of memory.  When I restart it, it opens with about 1.5 GB.  Once I start doing anything usage starts climbing 'til it either goes nuts and chaos ensues or I shut it down because it's so non-responsive.