Core Points - Samsung Electronics has acknowledged an issue with the lock screen animation in its latest One UI 7 system on Galaxy S23 and S24 series devices, which will be addressed in a May system update [1][3] Group 1: Issue Details - Since the global rollout of One UI 7 began in early April, numerous users have reported delays or complete disappearance of the lock screen animation after device locking [3] - The problem predominantly occurs when the screen resolution is set to FHD+ (1080p) or lower, while switching to QHD+ (2K) resolution allows the animation to render correctly [3] - Over 60% of complaints are related to rendering conflicts caused by resolution settings [3] Group 2: Resolution Plan - Samsung's development team has identified the root cause as a compatibility defect in the animation rendering engine with low-resolution modes [3] - An internal test firmware (version S928BXXU4BYDE) has been pushed to select users, which successfully eliminates the animation lag at FHD+ resolution, but it has not yet been made available to all users via OTA [3] - The official fix is expected to be rolled out in batches by late May, following a 3-4 week stability verification process for the internal test firmware [3] Group 3: Additional Updates - The May system update will also include the Android security patch for May 2025 and minor UI adjustments, with priority given to the Galaxy S24 series before expanding to the S23 series and other compatible models [3] - Users can manually check for updates through the "Settings - Software Update - Manual Download" path [3] Group 4: Historical Context - Samsung's update history shows that major version iterations often come with early compatibility issues, as seen with One UI 7, which previously faced problems such as SwiftKey input method conflicts and privacy vulnerabilities in secure folder albums [4] - Industry analysts suggest users temporarily switch to QHD+ mode to avoid the issue or wait for Samsung's official confirmation of the fix before upgrading [4]