FCX not liking Sony a7RII slow motion

Having an odd issue here. One of our shooters, shot some really great stuff on his Sony a7 and when we imported the footage everything looked okay until we brought it into the timeline and then it messed everything up. Video in events browser started acting funny (all of it) and the actual preview image from the clip eventually went away. I know I can take this into Compressor but it's a step that I feel I shouldn't have to take. Oddly enough, I did find a weird workaround. Once the clip was imported and transcoded (Prores 422) I selected it and moved it to the trash where I then went and watched the video - it looked fine and played perfectly. I then took the video from the trash and placed it in my timeline (which it makes a copy in your events folder) and it worked. Anyone else having this issue? I'm also having it with GoPro slow motion footage. Thanks - DL