Lightroom Classic CC bugs since last major update, any fixes?

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Since the latest big update and the subsequent bug fix update (version 7.3.1 and I performed the update in April 2018) Lightroom has been very glitchy to say the least. The recent 'bug fix' update did fix a couple of issues such as slow performance going from one photo to the next, but it's still very buggy. A couple of the most frustrating bugs are when I'm scrolling through the left hand menu/column in the develop menu where the presets, history etc is, if I want to scroll up and down to choose different presets it's very laggy and freezes for a couple of seconds. The other frustration is the clone/heal brush, moving the cursor is not smooth and it jumps meaning you can't brush precisely, basically it's become unusable. There are other stutters and things as well such as stuttering when adjusting the size of the brush using the finger gestures on the track pad.

Is anyone else experiencing this? Do adobe read these forums so they can be made aware of bugs? I tried to contact them directly but it doesn't allow me to, it just keeps pointing me in the direction of this forum.

I'm running Lightroom Classic CC on the 2017 Touch Bar MacBook Pro with 16GB RAM, 2.9Ghz i7 processor, and radeon pro 560 4096MB GPU. I was running Mac OS X Sierra but due to the glitches thought I'd update to Mac OS X High Sierra to see if that fixed it but the same glitches are apparent.

 

If there's anything I can do to fix this I'd appreciate it as the software is a pain to use at the moment.

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tobygunnee

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Posted 3 months ago

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Simon Chen, Principal Computer Scientist

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Maybe your issue is related to https://feedback.photoshop.com/photoshop_family/topics/add-the-possibility-to-disable-full-image-preset-preview? There is a possible workaround documented at the end.
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tobygunnee

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Thanks for this. I have disable full image preview but it's still very glitchy. Scrolling through the presets is very stutters and a royal pain. The clone/heal brush still jumps rather than being able to brush smoothly so is still unusable, and changing brush size for other adjustments is also glitchy/jumpy. What a mess they've made of this software. One reason I've always used Lightroom over other softwares such as Capture One and irident was that it operated smoothly whilst the others were a bit glitchy. I don't want to change softwares but I can't bear Lightroom in its current form.
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Michaelfromoz

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I had not noticed any of the listed issues before the latest update 'fix' but now that I have updated to 7.3.1 there is clearly something not right about it.
It is jerky, often becomes unresponsive, there is a lag with brush applications and now in develop after pressing auto on an image when I press the right arrow to move to the next image I get either a red image if the highlight clipping is on or a white screen if the highlight clipping is off. If I don't press auto on an image it displays the next image OK. When it is red or white pressing basic/auto displays the image correctly. I have also noticed that I often see a flash of a previous screen layout when moving from one image to another. It has also frozen a couple of times. Should I reinstall the previous bugg ridden version that I didn't have a problem with or go back even further?
In its current state it is verging on unuseable.

PS. After a bit of investigation I think that, whatever 'fixes' you included in the latest update have upset the integration of the graphics processor. If I turn mine off then I seem to lose this red/white problem. If I turn it back on then the problem returns.
I haven't checked for the jerkyness or the flashing screens but I am think that this is the problem behind them all.

Perhaps tobygunnee you might like to test this theory too.

I have an excellent NVIDIA GeForce GTX 1050 Ti video card in my Dell 7567 laptop

Michaelfromoz
(Edited)
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tobygunnee

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Thanks you're a star. I've turned off the "use graphics processor" under the performance section in the preferences and it's much better. No lag on changing brush sizes or using the clone/heal brush. There is a tiny stutter scrolling through presets but nothing major. It's even fixed the glitch using the crop tool where if I selected crop it briefly showed the last image I'd cropped.

It's much better now in these regards, hopefully it won't slow it down in other areas. 
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Simon Chen, Principal Computer Scientist

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Please keep your GPU driver up-to-date. See https://helpx.adobe.com/lightroom/kb/lightroom-gpu-faq.html, for the Nvidia driver, make sure to follow the steps that does a clean installation of your graphics card driver.
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Michaelfromoz

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It was a thought that came to me last night. Thanks for that. I have just updated my Nvidia driver and updated Lightroom back to v 7.3.1 and touch wood, all appears well at this time. I haven't had the need to dive in for a full retouching of an image but I will shortly.

Simon, I have a question about who drives who. Does Nvidia have to keep up with Lightroom or does Lightroom have to make changes to meet the requirements of the Nvidia. Having only purchased my laptop a few months ago and ensured that I had chosen an excellent video card specifically so that I could run Lightroom well, I would hate the situation I had before with my previous laptop when Lightroom advised that my video card (which I also thought was good at the time) would not work and I had to switch my graphic processor off. 
(Edited)
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Simon Chen, Principal Computer Scientist

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Lightroom programs its GPU implementation to the specification of the open standardized platform graphics APIs (DirectX on Windows, Metal on macOS or OpenGL 3.3). In theory, all GPU drivers should also implement such APIs fully to the specification, conforming and bug free. In practice, due to differences and complexities in the various GPU hardware and drivers, there will be discrepancies in driver behaviors and even bugs, especially on older generation GPU cards.
(Edited)
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Michaelfromoz

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I thought that I was using one of the latest and greatest in my NVIDIA GeForce GTX 1050 Ti. Do the DirectX APIs change or get modified over time? The NVIDIA driver just installed was dated 1/03/2018 and it corrected the issue which sort of implies that the old driver was not integrating well with the latest Lightroom Classic CC update so something must have changed, unless it was a NVIDIA bug fix update.
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Michaelfromoz

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Using Creative Cloud I've just reverted to v7.2 (there is no v7.3 to go back to) and, whilst things like the deHaze is no longer under the Basic tab (I can't remember what else 7.3 gave us), I cannot replicate the issues with the jerkyness or flashing screen display or the red and white screens with the Graphics Processor switched on. 
I think I'll continue to operate under this version until a version 7.3.2 is distributed.
(Edited)