Description: webanimations/accelerated-animation-after-forward-filling-animation.html The first failure that I saw on the dashboard for Big Sur was 2/16/2022 at r289890, which had to do with modifying ContainerQueryEvaluator but it is unclear if this is causing the issue. The first failure that I saw on the the dashboard for Monterey was 3/17/2022 at r291447. They have remained flaky image failures throughout history on the dashboard. REPRODUCTION STEPS I can reproduce this on ToT ( r293441 ). Command: run-webkit-tests --root 293441 --exit-after-n-failures 1 --exit-after-n-crashes-or-timeouts 1 --pixel-tests --tolerance 5 --iterations 2000 -f --no-retry Result: Unexpected flakiness: image-only failures (1) webanimations/accelerated-animation-after-forward-filling-animation.html [ ImageOnlyFailure Pass ] History: https://results.webkit.org/?suite=layout-tests&test=webanimations%2Faccelerated-web-animation-with-single-interval-and-easing-y-axis-above-1.html&platform=mac&limit=50000 Image Diff: https://build.webkit.org/results/Apple-Monterey-Debug-WK2-Tests/249998@main%20(986)/webanimations/accelerated-animation-after-forward-filling-animation-diffs.html
<rdar://problem/92365628>
I have marked this test as a flaky image failure while this issue is investigated.
Pull request: https://github.com/WebKit/WebKit/pull/406
Test gardening commit r293487 (250021@main): <https://commits.webkit.org/250021@main> Reviewed commits have been landed. Closing PR #406 and removing active labels.
Pull request: https://github.com/WebKit/WebKit/pull/1469
Committed r295495 (251500@main): <https://commits.webkit.org/251500@main> Reviewed commits have been landed. Closing PR #1469 and removing active labels.
Reopen for a fix. After landing 251500@main we continue to get flaky image failures.