This is not good. Unfortunately any clips recorded in the FS5 using the Rec2020 color option in the new Picture Profile 10 cause Adobe Premiere CC 2017.1.2 to crash as soon as you try to play them back. The clips play back fine in Resolve or in earlier versions of Premiere CC, but with the latest version of Premiere CC you get a near instant crash no matter what your playback settings.
If you are running an earlier version of CC then stay with that for now if you want to work with the new HLG clips and 2020 color. Rec 709 color works just fine so you can shoot HLG with Rec709 color and edit that in Premiere CC, but HLG + 2020 color will crash Premiere CC 2017.1.2. Hopefully this will get resolved soon by Adobe/Sony.