@taoyouh12138 I have confirmed with the QuMagie team that the QuMagie should been changed in the new version 2.6.0 to check both Media Sign Player and Media Viewer, and only notify to install Media Viewer.
Based the policy of CAYIN, they will only maintain Media Viewer in the future, so the QPKG of QNAP which uses CAYIN functions should all make adjustment.