Windows 10 Deployment of Plugins
I have observed that following the procedure to create a deployable package as described here: http://doc.qt.io/qt-5/windows-deployment.html with your own plugins into a plugins subdirectory of the deployable package does not work when having my code compiled in Windows 10: the plugins are simply not found when executing my app. It does however work under Windows 7. All with the same versions of Qt Creator and MinGW. Has anybody else have similar experiences?
Did you try to start your application with the "QT_DEBUG_PLUGINS" environment variable set to 1 ? That might give you more information about what is happening with your plugin.