Filmic is great, but I’ve always had a lot of problems with bringing it into other applications. Apparently I’m not alone. The good news is, we can now use ACES to get the color spaces of our various programs and devices to finally work together!
You can get ACES here: https://github.com/colour-science/OpenColorIO-Configs/tree/feature/aces-1.1-config
Here’s a video about how to set it up (which should be familiar for those of us who used the earliest versions of Filmic):
More info is available here https://www.toodee.de/?page_id=1720# and here: