It looks like after the changes in r268947 that 60 tests are failing on Catalina WK2. when viewing results I am seeing wildly different expected and actual images, so it looks like the test runner is not giving the right image results to the right tests for diffing Build: https://build.webkit.org/builders/Apple-Catalina-Release-WK2-Tests/builds/9585 Results: https://build.webkit.org/results/Apple-Catalina-Release-WK2-Tests/r268947%20(9585)/results.html
<rdar://problem/70695970>
reverted this commit in https://trac.webkit.org/changeset/268997 to see if this resolves.
https://build.webkit.org/builders/Apple-Catalina-Release-WK2-Tests?numbuilds=50
This was a bot configuration issue.