This worked for me, thanks so much, I was also converting a PDF to a word doc, all the spaces seemed find in the word doc but then when I placed it some of them were missing, esspecially in all the headings, but some of the body copy too. Find and replace spaces for spaces, save, place again and it all worked!!!! ... View more

ok, thanks anyway Johan, you helped me take the cache issue out of the mix though ... View more

ok, so it is not to do with the cache then. Let me explain again using better grammer:-) I edit a single photo, then select the next 5 and sync the settings, all the previews/thumbnails render fine. Then I click on another image in the film strip (often, unrelated to the 5 I have just synced) As I do step 2, a random image from the 5 I have just synced, will then revert back to the settings I had before, but only in the filmstrip, if I then click on the effected image the main preview will be fine. Have I made myself clearer now? ... View more

Yeah I get that the thumnailsif not in veiw do not get updated untill you scroll through them. but this problem is slightly different. Let me explain again. in the film strip (with lets say 10 thumbnails in view) lets say I have a group of 5 photos that I want to sync the setting with, I can do that and all the edits render, then as soon as I unselctthat group and move on to the images or group of images to edit one of the previously synced thumbnail reverts back to the pre-editted look. If i then click on the faulty thumbnail, it renders fine, but then another thumbnail in the film strip will revert back to a previous edit, it is almost like a toggle switch. This is why I was think that it could be some kind of cache issue where it is full and just purges the previews from before to make sure that the image you are on works. Does that make sense? Appreciate your help on this. ... View more

I have never had to do this in the past and as a work around for 10 images that might be fine but I am editing 800 photos at a time to set lightroomto build previews again is going to take ages. I have been using lightroom for years and never had this issue, there is an identical computer next to mine running the same software and it doesn't have this problem I have just been looking into it again and my Previews.lrdatafile is 61GB and the smart preview one is about 30BG, do you think these are too big? Could they be causing the problem? ... View more

UPDATE: Since uninstalling lightroom and reinstalling the problem has come back again, I tried uninstalling and installing again but it didn't fix it this time. could this be some kind of caching issue? i often run low on space on my hard drive. As wedding photographer we have a lot of images come through the drive so we are constantly uploading and then deleting shoots with around 100GB per shoot a 1 TB drive fills up quickly. Is there a way to seperateout the caching location so it is on a seperate drive potentially? or do people not think this is the problem?? what are your thoughts @JinHess? maxphotography  did you solve your problem another way? ... View more

Ok so it looks like I have fixed the problem, I uninstalled Lightroom and then installed it again and all seems to be working well now, there must have been a glitch staying in there even after updating. ... View more

Hi JimHess, thanks for helping our with this, here's my aswerto your questions... I am now working with version 7.4, I have 32GB Ram, 3.4ght i7, Running MacOS High Sierra and I have just stripped down my library and it is now at 18K photos which I don't really think is massive but I will let you be the judge of that. The problem is still happening, any more ideas from anyone, This is what I have tried so far - Updated lightroom to v7.4 - Set my camera raw cache to 10GB, and purged the it - deleted 6000 images from the library ... View more

I just updated and it is still happening. I read somewhere that Lightroom classic struggles with larger libraries, I have deleted some older shoots but I am still having the same problem. ... View more

I am working on version 7.3.1 and I get the same issue, If I choose, lets say 10 images in the filmstrip and "syncronise settings"  across them all, the previews do not change, if I go into each image the edits are their and the preview then updates as soon as I have viewed it in full screen. On top of that the previews sometimerevert back to the previous edit when I select other images in grid view and filmstrip. it is so strange, Any help would be appreciated it is driving me mad. ... View more