Given that SARS was from bats the first go-round, not surprising this one is as well.
You may or may not understand this article..I do a little.
” But crucial genes — for a protein that allows the virus to latch onto and infect cells — were different in the human and known bat versions of the virus, leaving room for doubt about this hypothesis.”
CHapel Hill solved that.
https://www.nature.com/articles/d41586-017-07766-9