I believe it is the source of trouble for all of these tests: imported/w3c/web-platform-tests/css/css-writing-modes/text-combine-upright-break-inside-001.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-writing-modes/text-combine-upright-break-inside-001a.html [ ImageOnlyFailure ]
<rdar://problem/87243131>
*** This bug has been marked as a duplicate of bug 164510 ***