CI task 669 failed in e2e 68d with no loading frame seen. The check began to sample after play(), and play() settles after the start. A video that loads quickly was ready by then, so the wait it checks had already passed. The composition itself had waited: its clock read 0 when the player was ready. - 68d starts its sampler before the click on Play and counts only frames in play mode. - The sampler stops after 20 s, not after a number of frames. Before the run the page draws far faster than 60 frames a second. Tests: - e2e 66, 67, 68 on melektaus-atx: ALL PASSED, 43 checks, 68d saw 6 loading frames at 0 and 0.32 s after Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>