Photo mechanic does not detect a Fuji X-E2 connected by USB. It cannot be used to download photos from a camera.
It does recognize an SD card from this camera as a disk.
It does not matter if the camera or SD card are connected before or after PM is started.
macOS standard application imagecapture works fine in all cases..
Photo Mechanic Version 5.0, build 19631 (bf87516)
MacBook Pro (Retina, 15-inch, Late 2013)
macOS 10.13.5 (17F77)