imported/w3c/web-platform-tests/css/css-will-change/will-change-fixpos-cb-transform-1.html Is a flaky image failure on BigSur Wk1 Release. History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-will-change%2Fwill-change-fixpos-cb-transform-1.html Image Diff: https://build.webkit.org/results/Apple-BigSur-Release-WK1-Tests/r277371%20(2637)/imported/w3c/web-platform-tests/css/css-will-change/will-change-fixpos-cb-transform-1-diff.png
<rdar://problem/77919540>
Created attachment 428386 [details] Diff
Created attachment 428390 [details] Expected
Created attachment 428393 [details] Actual
Updating test expectations: http://trac.webkit.org/changeset/277412/webkit
The "actual" image is showing up as blank white, so this sound similar to some other bugs we've filed recently.