In Netherland, The Expanse used to be a Netflix Original, while in the US it was on SyFy. But this "Netflix Original" appeared on Netflix half a year after it had aired on SyFy. And of course now that Amazon bought all rights to The Expanse from SyFy, this "Netflix Original" vanished from Dutch Netflix.

"Netflix Original" clearly doesn't mean much. I think it'd be wiser for Netflix to reserve it for shows they actually own, so they can never disappear from Netflix.