Created attachment 230783 [details] Clearly the image is BETWEEN back and text of the other element. A PNG image shows behind the next element, but IN FRONT of the same next element's background! Attached is a screenshot with the values in inspector (chrome). The computed values shown are from the element with background (H2) Both the H2 and IMG are static. Values for flex child should not be affecting because the parent has display:block in this media size. Happens in both Chrome and Safari.
BTW, the H2 is the RED text.
It's difficult to confirm this bug without a test case. We don't believe there is an ongoing issue here. If you do feel there is a problem, please REOPEN this bug and include a test case illustrating the issue.