Lxd & btrfs

I have used lxc for the last year and decided to try out lxd on btrfs. I am confounded as to how lxd recognizes btrfs? I have put the lxd dir under /var/lib/lxd and lxd is a subvolume on btrfs but does not seem to recognize it is indeed on btrfs. Now I have used linux for 2 decades as my main system, but I am not familiar with btrfs and this is my first install as such. Can someone point me in the right direction?
Thanks

I’ve moved this to the Support & Help Requests category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the Finding Help page.