I am an owner of a I-Mac (27-inch, late 2009, macOS High Sierra 10.13.1)
I tried to use the function "Unit as HDR Pro" with Photoshop CC 2018, many times used with the previous version, but the process aborted at the beginning steps. I tried to uninstall and re-install Photoshop 2018, but the problem remained.
Finally I installed the 2017 version again and HDR Pro is correctly running! I'm the only one to have registered this problem?
Thank you in advance
Massimo Gennaro (Italy)
Exactly the same problem with the same mac.... With the CC 2018 HDR give to me error... I trayed Photomatix with same files and it worlks perfect. Thanks for your Help.
Marco Ravenna (Italy)
May be it 's not your solution, but I move RAW on main HD and it works. Before the files were on an external hard drive actually almost full