[Webkit-unassigned] [Bug 239791] New: [ macOS ] webanimations/accelerated-animation-slot-invalidation.html is a flaky image failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=239791

            Bug ID: 239791
           Summary: [ macOS ]
                    webanimations/accelerated-animation-slot-invalidation.
                    html is a flaky image failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rackler at apple.com

Description:
webanimations/accelerated-animation-slot-invalidation.html

The first failure that I saw on the dashboard for Big Sur wk2 was 3/2/2022 at r290756, but this does not appear relevant to causing this issue.  The first failure that I saw on the dashboard for Monterey was on 3/18/2022 at r291481.  This test seems to have been flaky since the start.  

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 0.87 --iterations 2000 -f --no-retry

Result: 
Unexpected flakiness: image-only failures (1)
  webanimations/accelerated-animation-slot-invalidation.html [ Pass ImageOnlyFailure ]

History:
https://results.webkit.org/?platform=mac&suite=layout-tests&test=webanimations%2Faccelerated-animation-slot-invalidation.html&limit=50000

Image Diff:
https://build.webkit.org/results/Apple-Monterey-Debug-WK2-Tests/249989@main%20(984)/webanimations/accelerated-animation-slot-invalidation-diffs.html

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