I think Stephen might be right. Although you don’t need a preview to know that an image is going to be bigger or smaller, a preview can be very practical and useful if you are trying to anticipate whether the details in your 50% enlargement are going to look their best depending on whether you choose Automatic, Preserve Details, Bicubic, or Nearest Neighbor resampling (that isn’t even all the options). And there will certainly be a visual difference between those options. ... View more

Thankyou! This worked for me. Just have to import all of my raw files back into the catalog now without moving them. ... View more

@Piotr5E5C: "you are trying to say that (if it was the driver indeed) it is GPU driver that is causing absolutely no issue anywhere else (games, rendering software, etc.) but only makes Lightroom run extremely, unusably slow"   Indeed, there are many, many dozens of posts in this forum over the past few years where buggy, older graphics drivers have created problems with LR and updating fixed the problems, and many have commented that they didn't see issues with other apps. That's not at all surprising -- LR uses graphics processors much differently than other apps. Games render gazillions of little shaded triangles, whereas LR renders it's non-destructive Develop settings from an array of pixels. It's fallacious to assume that just because one app doesn't trip over bugs, another app, with completely different code, won't either.   ... View more

@Piotr5E5C: "you are trying to say that (if it was the driver indeed) it is GPU driver that is causing absolutely no issue anywhere else (games, rendering software, etc.) but only makes Lightroom run extremely, unusably slow"   Indeed, there are many, many dozens of posts in this forum over the past few years where buggy, older graphics drivers have created problems with LR and updating fixed the problems, and many have commented that they didn't see issues with other apps. That's not at all surprising -- LR uses graphics processors much differently than other apps. Games render gazillions of little shaded triangles, whereas LR renders it's non-destructive Develop settings from an array of pixels. It's fallacious to assume that just because one app doesn't trip over bugs, another app, with completely different code, won't either.   ... View more

So I created a THIRD user account, and this one does not seem to have the problem. Odd. ... View more

Thanks, Jeff - the control key on my external keyboard  is broken! Problem solved.     ... View more

Sometimes sign out of the Creative Cloud app and then sign back in fixes these problems. ... View more

I managed to replicate the problem by opening and closing the comp where I placed the new WAV ... View more

Thanks, CP and DF.  I think you are correct I did some looking, and here's what I found: I don't have access to cc 17 at the moment, so can't tell if this is something that existed before, but perhaps it did, and my adjustment layers weren't making such extreme adjustments and it was not noticable. It is certainly more noticeable when I create a gradient in layer masks gradients in pixel layers - I didn't know that masks were only 8 bit, so this makes sense. When I said other than 100% I was primarily talking about less than that. I work with large images, so to see them on the screen, they are often at less than 33%. I don't think it's a monitor issue - I have an NEC 90 series monitor that is said to be 12 bit, and I've calibrated it using spectraview hardware, and PS does support my GPU PS, I'd like to mark the answers above as correct, but the forum won't allow me ... View more