360 video from Final Cut Pro won't display in Facebook/Workplace
I can edit 360 videos in Final Cut Pro OK and they play in other software, but when I upload to Facebook (and Workplace by Facebook), they upload but will not display in timelines. I have tried multiple different formats and browsers. Has been very frustrating - if anyone can offer any help, it would be greatly appreciated.
Thanks
Final Cut Pro X, macOS High Sierra (10.13.3)