I have Photo Mechanic 5.0, build 18359 (5034d39) and an MacBook Pro using High Sierra version 10.13.1 (17B48). I use raw files. Sometimes when I edit in Raw and click on Photoshop, Photoshop won't open. I have to reboot my MacBook Pro and start over. Then Photoshop works. Photoshop version 19.0. I have 14409 MB memory and photoshop uses 10086. Why does Photoshop not work sometimes.Thanks