Secondary display showing on Studio display

[Pmatt F]

On MacOS 14.6.1, M1 MacBook Pro 16 inch, using an Apple Studio Display as the main Lightroom window.

Since I installed the latest Lightroom update, Secondary Window behavior has been very flaky. It keeps showing the secondary window on the Studio display, on top of the main application window. And sometimes switches the main window to the Macbook Pro screen. And when I do get the secondary display working on the Macbook pro screen, it sometimes has it too large, at Studio Display size so it gets cut off.

Is anybody else seeing this? Any way to fix it? Is it at least a known issue that Adobe is working on? This arrangement has been working perfectly for years before this.

[Sameer K]

Hey, @Pmatt F. Welcome to Lightroom Classic Community. I'll help you figure this out.

What version of the macOS are you working on?

As a basic troubleshooting step, reset Lightroom Classic following the second (manual) method from this article: https://adobe.ly/4czwc5z

Let me know if this helps. Thanks!
Sameer K

(Use '@mention' to tag me when you reply)

[Cahyenna]

Hi there, exactly same issue here. I reset the preferences manually as suggested, to no avail.

Reinstalled previous version (13.4) and everything works fine again.

Any further suggestion please?

MacStudio M1 Ultra, 64 gb RAM, Mac Os Sonoma 14.6.1

[Pmatt F]

I am on MacOS 14.6.1. 

Removing the preferences file does not resolve the issue for me either.