Hello,
I have tested the USB HID Composite Example from Nordic SDK (15.0.0 and 17.1.0) on Windows and MacOS.
1) usbd_hid_composite_pca10056.hex from SDK15.0.0 works both on Windows and MacOS
2) usbd_hid_composite_pca10056.hex from SDK17.1.0 works on Windows but doesn't work on MacOS
Can you please check this behavior?