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P: LrC 15.6: Sliders bouncing in the Develop module

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Lightroom was working perfectly this morning.. I come to load in new images and edit some while sitting here.. and as soon as Lightroom opened up - I tried to slide exposure (and other ones to test those...) and the slider immediately jumps one way or another.

I have reset preferences, turned off GPU.. NOTHING is helping.. please help me!

Pinned Reply By Sameer K

Hi All! Note from the team:

“On macOS Tahoe 26.3 or earlier, if the Develop module sliders move erratically after upgrading to Lightroom Classic 15.6, update to the latest Tahoe version (26.7, or later).”

Thanks!
Sameer K

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austenblake

Participating Frequently

if it helps it doesn't matter if I used Apply mouse or Logi 3s it still does it on both.

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dj_paige

Legend

Assuming you are using a Mac, upgrade the OS to 26.7.1.

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austenblake

Participating Frequently

ok i will try that as im currently on 26.2

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austenblake

Participating Frequently

my mistake im on that update already

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austenblake

Participating Frequently

Weird to explain but ever since the last update when I click any slider lets say Exposure when I click it and then when i move the mouse to alter it the slider it starts all the way over to the left.

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Shoey Sindel

Participant

As of yesterday, I also started having the same problem with my LR desktop. I use a Mac Tahoe 26.1.

I also have the current LR version. I’ve closed and reopened my LR and computer so that doesn’t seem to solve the problem. Please advise.

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johnrellis

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[View this post in your web browser. It contains formatting and images that don't appear in email.]

@Shoey Sindel Mac Tahoe 26.1.

See the pinned reply at the top of this thread for how to fix this issue.

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Shoey Sindel

Participant

Updating to Tahoe 26.7.1 solved the problem. Thanks

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dj_paige

Legend

Probably this bug

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Gladys0D44

Participant

Yes it was, thank you for pointing it out.

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dj_paige

Legend

In particular, this reply might help if you can update your MacOS to 26.7.1

https://community.adobe.com/bug%2Dreports%2D674/p%2Dlrc%2D15%2D6%2Dsliders%2Dbouncing%2Din%2Dthe%2Ddevelop%2Dmodule%2D1644658?postid=7775937#post7775937

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Gladys0D44

Participant

Since two days in Develop module all sliders jump to the left when I want to use them.

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John Paul_Paez5208

Participant

Hi, I’m experiencing an issue with Lightroom where the Exposure adjustment has a noticeable delay when I move the slider using my MacBook trackpad. I have already tried the recommended troubleshooting steps, including restarting Lightroom and my MacBook, but the issue is still happening. The Exposure slider does not respond accurately or immediately to my trackpad movement, making it difficult to make precise adjustments. I’m also experiencing similar delays with the Highlights adjustment. Could you please help me troubleshoot this issue or let me know if this is a known bug with the current Lightroom version? Thank you.

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elegant_vibrancydab0

Participant

Same issue here… Classic 15.6. reporting problems with the jumping sliders with Macbook pro 26.3. I’m trying to reset the version to 15.5.1, but afraid what will happen with the catalolgue i had. Finally, after the coming back to 15.5.1 i can see my catalogue was safe.

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Blissful_funa9d6

Participant

Experienced the same problem as of October 4, 2026: jumping sliders using wireless mouse and trackpad on a Macbook pro M4, OS Tahoe 26.2. Problem solved by reverting to Lightroom Classic 15.51 from Classic 15.6.

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