iPhone16PM Clean DFU, no restore, no tweaks. Started on iOS 26.4.3 and still happening on iOS 26.4. Triggers: ∙ Editing Home Screen widgets ∙ Heavy media in Safari ∙ ProMotion UI transitions Panic log — 0x8badf00d watchdog timeout: userspace watchdog timeout: no successful checkins from SpringBoard in 180 seconds. service: backboardd Drivers: com.apple.driver.AppleAVD + com.apple.iokit.IOSurface Is there a solution for this? Thank you.

Reporting a consistent system-wide freeze followed by a Kernel Panic when attempting to use the "Add to Home Screen" feature in Safari. This issue has persisted across multiple recent iOS updates and leads to a device bootloop. Technical Details: The UI becomes entirely unresponsive for exactly 180 seconds. Analytics logs indicate a userspace watchdog timeout caused by SpringBoard failing to check in. Panic String: panic(cpu 0 caller 0xffffffff0422ccb9): userspace watchdog timeout: no successful checkins from SpringBoard (0 induced crashes) in 180 seconds Steps to Reproduce: Open Safari and navigate to any URL. Tap the Share icon. Select Add to Home Screen. The device UI freezes immediately. After 3 minutes, the system triggers a reboot. Environment: • Device: 16PM panic-base-2026-03-12-222721.ips.txt • OS Version: 26.4 RC and Beta 3 v1 • Feedback ID: FB22286846 (Full sysdiagnose and panic logs are attached to the original Feedback Assistant report). Questions: Is this a known regression involving the web clip background daemon, or does the 180s timeout suggest a specific database corruption within the Home Screen layout?