Description: The time scale values on the battery usage curve in macOS 27 are displayed incorrectly. The screenshot timestamp is 14:39:11, October 20. Under the "Last 24 Hours" tab for Battery Level and Screen On Time charts, the timeline shows usage extending past 21:00 on October 20. This timestamp does not match the actual current time. It appears the timeline axis failed to shift correctly as time progresses. For comparison: a reference screenshot captured on macOS 26 at 09:30, August 8. Its battery usage timeline rendered correctly. The bottom time span covered August 7 to August 8, which is the expected and proper display behavior. This bug only exists in macOS 27’s battery usage chart. The older macOS 26 implementation works correctly. Device: MacBook Air M5 macOS version: macOS 27.2 RC

Description: The time scale values on the battery usage curve in macOS 27 are displayed incorrectly. The screenshot timestamp is 14:39:11, October 20. Under the "Last 24 Hours" tab for Battery Level and Screen On Time charts, the timeline shows usage extending past 21:00 on October 20. This timestamp does not match the actual current time. It appears the timeline axis failed to shift correctly as time progresses. For comparison: a reference screenshot captured on macOS 26 at 09:30, August 8. Its battery usage timeline rendered correctly. The bottom time span covered August 7 to August 8, which is the expected and proper display behavior. This bug only exists in macOS 27’s battery usage chart. The older macOS 26 implementation works correctly. Device: MacBook Air M5 macOS version: macOS 27.2 RC

Description: The time scale values on the battery usage curve in macOS 27 are displayed incorrectly. The screenshot timestamp is 14:39:11, October 20. Under the "Last 24 Hours" tab for Battery Level and Screen On Time charts, the timeline shows usage extending past 21:00 on October 20. This timestamp does not match the actual current time. It appears the timeline axis failed to shift correctly as time progresses. For comparison: a reference screenshot captured on macOS 26 at 09:30, August 8. Its battery usage timeline rendered correctly. The bottom time span covered August 7 to August 8, which is the expected and proper display behavior. This bug only exists in macOS 27’s battery usage chart. The older macOS 26 implementation works correctly. Device: MacBook Air M5 macOS version: macOS 27.2 RC

Description: MacBook Air M5, using only built-in display. The login window renders full screen normally. After logging into desktop session, the display canvas gets cropped with a black bar on the bottom-right corner. This issue is reproducible in Safe Mode and with a brand-new admin user account. No third-party display or window management software installed. Suspected WindowServer display coordinate calculation bug within user session. Environment Device: MacBook Air M5 OS: macOS 27.2 RC (26B118) Display: Built-in display only, no external monitor Reproduction steps Boot to login window, display works fine Log into desktop session Display canvas cropped, black bar appears at bottom-right