Virtual camera: Safari WebContent crashes, Camera.app preview black

Launchpad 2.9.2, bundle 2.9.5, iOS 26.6.2 (23G90), cloudOS 26.4, Test Pattern streaming. Frames reach cameracaptured (shm frame #7139), libcamfix loaded, canAddInput:vphone:vcam:0 -> 1, but Camera.app shows black (Time-lapse mode only) and Safari shows “A problem repeatedly occurred” on webcamtests.com.