I’m seeing a reproducible title-bar interaction issue on macOS 27 RC (26A428). This issue has been present since at least macOS 27 build 26A5416b (Developer Beta 6 / Public Beta 4) and is still reproducible on the Release Candidate, build 26A428. My System Settings → Desktop & Dock → Window title bar double-click action is configured to Fill. In several system apps with sidebars, including: Finder System Settings Reminders Feedback Assistant the right side of the title bar shows a visible rectangular region when the pointer hovers over it. The more important problem is that the middle portion of this region appears to intercept the title-bar double-click. Double-clicking there does nothing, while double-clicking very close to the top or bottom edge of the same region correctly triggers Fill. This makes the normal title-bar gesture surprisingly difficult to use because the center of the title bar is naturally where I would double-click. Interestingly, the sidebar area does not have this problem: double-clicking the top, middle, or bottom portions of the sidebar title-bar area all works normally. Feedback Assistant makes the behavior particularly easy to see because its left sidebar and rightmost pane behave normally, while the title-bar region above the middle pane exhibits the problem. Steps to reproduce: Set “Double-click a window’s title bar” to Fill in Desktop & Dock settings. Open Finder, System Settings, Reminders, or Feedback Assistant. Move the pointer over the right/content portion of the title bar until the rectangular hover region appears. Double-click around the center of that region. The Fill action does not occur. Double-click very close to the upper or lower edge of the same region. Fill works normally. I have reproduced this on macOS 27 RC build 26A428, including: a newly created macOS user account Safe Mode so it does not appear to be caused by migrated preferences, caches, login items, or third-party software. A screen recording demonstrating the exact hit-testing behavior was submitted through Feedback Assistant. Feedback: FB24462749 Is anyone else able to reproduce this? It looks as though some view or overlay in the new title-bar/toolbar area may be intercepting mouse events.

I’m seeing a reproducible UI bug with Spotlight on macOS 27 RC (26A428). The issue has been present since at least build 26A5416b (Developer Beta 6 / Public Beta 4), persisted through subsequent beta releases, and is still reproducible on RC 26A428. When I open Spotlight using the new Search or Ask interface and begin typing, the entered query text can become completely invisible from approximately the second character onward, even though Spotlight continues searching and displaying results normally. The interesting part is that the issue seems tied to Spotlight updating its search results. For example: Open Spotlight. Type a character that quickly matches something on the Mac. Continue typing. Once the results update, the query text becomes invisible. If I type random characters extremely quickly, before Spotlight has time to return a result for the first few characters, the text may remain visible. Another useful detail: after the query text disappears, pressing Delete/Backspace causes it to become visible again. The search itself is still functioning, the problem appears to be with rendering or state updates in the new Siri-integrated Spotlight query field, rather than with Spotlight search/indexing itself. I have reproduced this on macOS 27 RC build 26A428, including: a newly created macOS user account Safe Mode so it does not appear to be caused by user preferences, caches, login items, or third-party software. I submitted a screen recording through Feedback Assistant that clearly shows the text disappearing as results update. Feedback: FB24462893 Is anyone else seeing this on the RC? The correlation between the text disappearing and the results UI updating makes me suspect a rendering/state-update issue in the new Spotlight interface.