(Xcode 26.0 → 26.2) Constant UI flickering in split view mode

Question

Created Dec ’25

Replies 6

Boosts 2

Participants 4

Hello,

I’ve been experiencing a persistent issue in Xcode since version 26.0, and it is still present in 26.2. When using the split view to display two files side by side, the area in the top‑right corner of the window (the inspector / options panel) starts flickering continuously.

This happens regardless of whether I’m using the light or dark theme, and even with the Liquid Glass effect disabled in macOS settings. None of these changes have any impact on the issue.

I have already submitted a bug report through Xcode (Feedback Assistant), but the issue is still present as of today.

The flickering makes the interface difficult to use and visually very distracting.

I’ve attached a video to clearly show the issue. I will review the attachment at the time I publish this post.

Thanks in advance for any help or feedback.

Video 1 https://www.icloud.com/iclouddrive/077l-R7Ybvxz89NI-B7DliEuA#xcode_bug1

Video 2 https://www.icloud.com/iclouddrive/0f6bJp48ioGRdkYiA2U4sI-cg#xcode-bug2

Boost

Answer 1

DTS Engineer OP

Apple

Dec ’25

Thanks so much for the post and the video itself. Would you be able to provide a focused sample project so I can run it myself and see if you are using UIKit or SwiftUI and what is causing the issue?

If so, please share a link to your test project. That'll help us better understand what's going on. If you're not familiar with preparing a test project, take a look at Creating a test project.

Thanks

Albert Pascual   Worldwide Developer Relations.

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Answer 2

-Mehdi- OP

Dec ’25

Hello Albert,

Here is an archive containing a test project along with a longer video of my reproduction:

https://www.icloud.com/iclouddrive/0cei7q8T4jFu17bCxjbq-RoUg#XcodeLongFlickeringDemo+Project

Thanks

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Answer 3

Sidelobe OP

Jan ’26

Thanks for reporting this, @-Mehdi- -- I can confirm this behaviour happens on my machine and is extremely annoying / visuall distracting

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Answer 4

-Mehdi- OP

Feb ’26

Toujours là avec Xcode 26.3 au fait

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Answer 5

-Mehdi- OP

Feb ’26

Still there with Xcode 26.3 btw

1

Answer 6

FNJKIM OP

2w

Just in case anyone else is having a problem, I found that it flickers when I am on Studio Display + Light Theme. If I move the XCode window to the laptop display, it will not cause flickering. I have just found that on dark theme, flickering does not occur in any of my setups, whereas light theme causes flickering, just like shown in the video (top right corner).

I want to repeat that: flickering only seems to happen on Studio Display for me.

XCode Version: Version 26.3 (17C529) MacOS: Version 26.3 (25D125) Hardware: Apple M1 Max

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