https://bugzilla.redhat.com/show_bug.cgi?id=1281760
--- Comment #6 from Fedora Update System updates@fedoraproject.org --- mingw-libpng-1.6.21-1.fc22 has been pushed to the Fedora 22 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-43735c33a7