Windows version 9.2 - drag and drop reordering of track plugins not working

Hi, this is using Version 9.2 for Windows. I normally use Ardour under linux and I am not sure how widespread this issue is: I am unable to change the order of track plugins. For instance, to move plug-ins to be pre-fader, the plugin box can be dragged but will not drop. I am also not sure the icon is what is expected (see screen shot). Before I raise it as a bug, do other Ardour users on Windows experience this issue?