The fix for RT-34055 has caused or exposed rendering errors in the SW pipeline. These failures are showing up as unit test failures in the robot-based visual tests for Region. There may be other problems as well, and if so, I will add them to the bug report.

Here is a sample of the failures.javafx.scene.layout.RegionBackgroundFillUITest > testOnePixelTopInset FAILED
    java.lang.AssertionError: expected:rgba(255,255,255,255) but was:rgba(255,255,128,255) at position x=49, y=150
        at javafx.scene.layout.RegionUITestBase.assertColorEquals(RegionUITestBase.java:89)
        at javafx.scene.layout.RegionUITestBase.runTests(RegionUITestBase.java:364)
        at javafx.scene.layout.RegionUITestBase.checkRegionLeftBoundary(RegionUITestBase.java:159)
        at javafx.scene.layout.RegionUITestBase.checkRegionLeftBoundary(RegionUITestBase.java:146)
        at javafx.scene.layout.RegionBackgroundFillUITest.testOnePixelTopInset(RegionBackgroundFillUITest.java:495)

javafx.scene.layout.RegionBackgroundFillUITest > testYellowOnRed FAILED
    java.lang.AssertionError: expected:rgba(255,255,0,255) but was:rgba(255,138,0,255) at position x=91, y=150
        at javafx.scene.layout.RegionUITestBase.assertColorEquals(RegionUITestBase.java:89)
        at javafx.scene.layout.RegionUITestBase.runTests(RegionUITestBase.java:364)
        at javafx.scene.layout.RegionUITestBase.checkRegionLeftBoundary(RegionUITestBase.java:159)
        at javafx.scene.layout.RegionUITestBase.checkRegionLeftBoundary(RegionUITestBase.java:146)
        at javafx.scene.layout.RegionUITestBase.checkRegionCornersAndBoundariesOfBackgroundFill(RegionUITestBase.java:350)
        at javafx.scene.layout.RegionUITestBase.checkRegionCornersAndBoundariesOfBackgroundFill(RegionUITestBase.java:346)
        at javafx.scene.layout.RegionUITestBase.checkRegionCornersAndBoundariesOfBackgroundFill(RegionUITestBase.java:342)
        at javafx.scene.layout.RegionUITestBase.checkRegionCornersAndBoundariesForFills(RegionUITestBase.java:132)
        at javafx.scene.layout.RegionBackgroundFillUITest.testYellowOnRed(RegionBackgroundFillUITest.java:769)

49 tests completed, 2 failed, 5 skipped
:systemTests:test FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':systemTests:test'.
> There were failing tests. See the report at: file:///localhome/kcr/javafx/8-kcr-gfx/jfx/rt/tests/system/build/reports/tests/index.html