Participating Frequently

P: CR 18.3 is slow until you install the update (see Highlighted Post)

Forum|Forum|2 months ago
April 17, 2026
74 replies
3406 views

I have never had an issue with ACR before.18.3 freezing saying not responding saving files took twenty minutes instead of seconds everything was super laging, when I disabled the GPU acceleration it improved I see on the other pages I am not alone I'm using the most up to date windows, Nvidia drivers ETC: I have a 7950x, 5090, 64GB and NVME drives. Please fix as soon as possible or at least give a link to the previous version which I had no issues with.

Solution:

Update following the instructions in this link:

Show previous replies

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march411

Known Participant

Just download 18.1.1 and run it locally, it will overwrite 18.3 and resolve your issues. I had to do it on my Windows system on 4.18.26 because the new version consistently threw errors and locked my machine. Up and Down has all the older versions.

U

uminnoun97924091

Participating Frequently

how do you download previous versions?

M

march411

Known Participant

Use this Adobe affiliate and the new version: Adobe RAW downloadable versions

Once you have it locally on your computer just run the executable file and it will overwrite 18.3. Restart you computer once the installation is complete.

ImZeOne

Participating Frequently

Since updating to Photoshop 27.5 with the new ACR engine, Super Resolution images (140 MP) won’t open anymore. I get this error:

“Unable to open ‘myfile.raf’ because the file format module cannot interpret the file.”

Before the update, I could open 3–5 of these 140 MP images (64 GB RAM) without any issue, for exposure blending and HDR work.

U

uminnoun97924091

Participating Frequently

why do they have to break something whenever there is an update?????.

W

wolfenmediaAuthor

Participating Frequently

They could at least make it easy to roll back to the previous version

rickburress

Inspiring

I am also experiencing this issue with GPU on. Weoking on a Mac M3 Max with 128 GB of RAM,

Chipset Model: Apple M3 Max

Type: GPU

Bus: Built-In

Total Number of Cores: 40

Vendor: Apple (0x106b)

Metal Support: Metal 4

Displays:

Color LCD:

Display Type: Built-in Liquid Retina XDR Display

Resolution: 3456 x 2234 Retina

Main Display: Yes

Mirror: Off

Online: Yes

Automatically Adjust Brightness: No

Connection Type: Internal

rickburress

Inspiring

The patch to 18.3.0.2529 resolved the issue. Thank you!

tptobias

Participant

First of all camera RAW 18.3 is significantly slower, can't really use it anymore.

Second it totally freezes if you first change ratio/crop photo and after that want to apply a preset.

Is there a way i can downgrade back to the previous version?

Oh and this webpage to a form for bug reports is uselss! Because there isnt a form to fill in. (https://www.adobe.com/nl/products/wishform.html#sa_src=web-messaging)

peterb86513089

Inspiring

I too had problems with ACR 18.3 and could not use it for my work. Unfortunately it is not possible to use the Creative Cloud application to install an older version of ACR. I contacted Adobe support (via the chat with an agent) and after a brief discussion they provide me a link to the ACR 18.0.0 installer. You should contact Adobe support if you need to install a prior version of ACR.

Peter

tptobias

Participant

Yes i contacted them, They first installed version 14.0 but i wanted newer so now im at version 18.0 aswell. There is a new update now with version 18.3.1 But its still super slow for me so im back at 18.0. Have you tried it?

Peru Bob

Community Expert

See if this helps:

Rikk Flohr_Photography

I’ve consolidated the posts from the Announcement thread to this bug report and logged a ticket for the Camera Raw team to investigate.

Thanks for making a separate report.

It is definitely not the best to report suspected bugs on a product announcement and this is the better way to go.

Rikk Flohr: Adobe Photography Org

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wolfenmediaAuthor

Participating Frequently

Thanks

W

wolfenmediaAuthor

Participating Frequently

I'm having the same issue as a lot of people here the previous version of ACR I had no Issues 18.3 is barely useable unless I turn off GPU Acceleration, I'm using a 7950X, 5090, 64GB memory and NVME drives.

peterb86513089

Inspiring

Yes, I gave up. Unfortunately I could not find other versions of ACR from the Creative Cloud application. And the link I had saved for ACR plug-installer pointed to version 14, which seemed to me to be very old. So I contacted Adobe support (from within the Creative Cloud application) and chatted, first with a bot and then with an agent, who was able to provide me a link to ACR 18.0. I have now reverted to 18.0 and that has resolved my issues.

Peter

peterb86513089

Inspiring

I should add that I did not notice whether turning off the GPU accelerator made any difference. So for my case the overall thread title may not reflect my problem.

H

HareKrishna328977906yb0

Participant

I updated Adobe Photoshop today, and since then I have been experiencing an issue while opening Camera RAW files.

Specifically, when I enable the “Super Resolution” option in Camera Raw and attempt to open a file, an error message appears, preventing the file from opening successfully.

File opening error : Could not open because the file-format module cannot parse the file.

This issue started immediately after the update, and I was not facing any problems prior to that.

Kindly assist me in resolving this issue at the earliest. Please let me know if you require any additional details or error logs.

Please help.

Thank you.