Layer opacity doesn't update in real time

[rimin76447718]

When moving the opacity slider on the layers pannel, it only shows effect after I let go and not while I'm moving the sliders. Is there a way to make it update in real time?

[Bojan Živković]

If I can understand your question correctly then answer is No. There is feedback site where you can add feature request https://feedback.photoshop.com/photoshop_family

[Guest]

It should update in real time have you tried using the scrubby slider, at least it does in CC 2019

[Bojan Živković]

From my testing it updates only when you stop for a moment, not before. As you are dragging it is not updating immediately before you make small stop , at least that's how I see things to work.

[Guest]

When I drag it slowly without stopping it does update on screen, it does look like it's doing incremental updates though

[Spitfire CH87]

Very annyoing bug! Opacity slider stopped updating in realt time.. What a mess

[Marja de Klerk]

It does show the effect in real time, either using the scrubby slider or the original opacity slider. I'm using the 20.0.6 release. 

[Bojan Živković]

Perhaps my system is not capable.

[dk90941210]

Ever find a fix for this? Mine just started doing this after the last update. 

[OwenLloyd]

Same here - just updated tonight and the opacity and fill sliders no longer update as you slide. 

[inekradomir]

I have a same problem after latest update. Even when I am doing changes in curves or levels I can see the change after I let go of a mouse. Really looks more like a downgrade 😞

[Guest]

Well it looks like Adobe have broken it alright in version 21.1 and can confirm that the sliders do not update in real time, you can post a bug report on the Adobe Feedback Forum

[OwenLloyd]

Thanks Ged.  One other event I had last night after the update was that the entire image window froze and would not update.  The UI (menus, toolbar, panels etc) was still working fine but the image window was just frozen.  Tried minimising it, switching documents, minimising Photoshop etc.  I was able to save the work close PS and re-open - and it didn't happen again, but it may be related - ie the way the image window is refreshed has changed.  I'll post a bug report

[Guest]

You can go back to version 21.0.3 from the CC app if you need to

[ClauS]

Same here and I've got some problem with GPU acceleration too.

Regarding opacity not updating in real time, I've noticed that it updates when I let go the slider or, while keeping the button pressed, I stop sliding and move the mouse up or down while keeping the left button pressed. This is a very annoying issue.

[Guest]

If you go into free transform mode via Ctrl + T it will update in real time

[ClauS]

Thank you. That's really weird and unfortunately it doesn't work on adjustment layers which cannot be transformed.

[Guest]

This update is a bit of a mess and that's why I went back to 21.0.3

[ClauS]

I had already reverted back hoping to fix GPU issues but the only result had been that I had to set all preferences back again. At this point I will get used to use arrow keys to set opacity or keyboard shortcuts. It's the fastest workaround.

ps: anyway, I've solved my GPU issues in the weirdest way (I write it here as it could help someone in the future). If PS is assigned to the High performance graphics card (as it was and should be), GPU acceleration doesn't work: my NVIDIA card is detected in preferences but is disregarded as soon as I open a file and OPENGL related features (like canvas rotation, scrubby zoom, ecc) are not available. Now, if I assign it to the integrated one, PS still detects the NVIDIA card and uses it properly.

pps: how stupid is I get notified on my mail of my own replies?

[scottmadore]

I have the same issue. This was working in previous versions. Very annoying now. Please fix asap.

[GurneyHM]

Yup - to confirm all - same issue, previous version 21.0.3 works fine. 

[Falrinth]

Same issue. Not sure how it passed QA and why there is no hotfix. Fine tuning or playing around with opacity of stuff is significantly harder right not, and surely less comfortable.

[giovannifarina81]

As per today the problem still here, I'm not sure if it's part from Adobe or just from the graphic card, in my case if  I try to slide from the number itself, it does not update, but if I click the arrow and use the actual slider, it works fine. I reverted to 21.0.3 and everything works fine, I read somebody else mentioning the fact they had to reset all the preferences after installing, but there is a way to make it easier.

In windows, navigate to C:\Users\YOURUSERNAME\AppData\Roaming\Adobe, the AppData folder it's hidden by default so you can either unhidden or press the Windows key and type %appdata% and hit enter, once in the Adobe folder copy and paste the folders "Adobe Photoshop 2020" and "Adobe Photoshop CC 2019" let's say in the Desktop, not sure why the second it says 2019 but it contains a lot of customisation, and if you never had 2019 installed in the machine, they may be both 2020. With a copy of the two folders safe in a different location, go ahead and install the previous version of photoshop, once done, just copy those two folders back in the AppData adobe folders and it will look the same as before, everything retained, workspace, extension, hotkey etc.

[ClauS]

Actually the slider "works" in a more usable way but not in real-time like the Ctrl-T workaround when applicable. However thanks. Meglio di niente.
I was that somebody. I already knew those folders and how to backup preferences and so on. What I didn't know and imagine was that reverting back to the previous build of the same release would make me lose them. I discovered the hardest way. But also I had noticed that I had some plugins in the 2019 folder that weren't loaded in the 2020. I don't know if downgrading broke the link or what else. I've had to move them in the 2020's plugin folder to make them work again. 

[gener7]

Adobe just released 21.1.1 for CC 2020 and the Opacity slider does seem to work on the Mac OS side.

See if that update helps any.

Also try "scrubbing" inside the Opacity box by holding down Ctrl (PC) or Cmd (Mac). The I-beam cursor should change to a hand and then you drag left or right to change the Opacity in real time.