That was a good guess, but unfortunately, it did not work for me. There is a random-ness to the failures. About 95% of the time, EU3 will not start - the other 5% of the time it does, and when it does, picture downloading at least, works normally. There also seems to be a contention between Apple's Image Capture app and EU3. For example, after connecting the camera to the USB-C port next to the magsafe connector, and getting no response (no EU3 connection), I tried launching Image Capture, and then suddenly EU3 launched, but Image Capture did not connect - did not even register the camera . I tried other permuations, combinations and sequences of USB ports, powering the camera up & down, etc, but only managed one successful connection out of about 50 attempts.
The technique I've had best success with is this:
- With camera turned OFF, start Image Capture and EU3
- Turn the camera ON
- It seems in all cases, ONE OF the apps (Image Capture or EU3) will recognize & connect to the camera, the other app won't. The majority of connects go to Image Capture.
- This behavior is approximately the same for all 3 of the USB connectors.
My conclusion is that this is an incompatibility/"bug" between macOS and EU3. I wonder if it might be possible to disable Image Capture to eliminate the contention, but I've found no way to do that yet.
