With the Xcode 9 GM build if I drag a folder from finder or the desktop containing .h/.m (objC) files into the navigator pane to add to my project they are never added to the target. The add files to project dialog opens and despite "Add to targets" being selected it never adds the .m files to my intended target.
Is anyone else seeing this issue?
This only happens with folders of files dragged over, dragging the files themselves works. Also, if I right click on the nav pane and select "Add files to project" or click the + icon in the lower left it does work as intended and the files are added to the target.
(Xcode 9 GM 9A235 and MacOS 10.12.6)