We all saw the announcement that Netflix or Google had fixed whatever was keeping Android TV from playing Netflix when commanded via Assistant (Home, Home Mini, etc). It still didn't work for me for weeks. I even got on customer service via Google One and was told that's just not a feature and Android Police was wrong. Whatever, I still try it from time to time.
Until this last week it finally worked. I have two MiBox 4K's (last year's model, affordable at Walmart), and it started playing Castlevania in my bedroom. Great! Except I was standing by my Home Mini in the living room. I try it on the living room box. "Sorry, that can't be played..."
Both boxes are on the latest update and the app is up to date too. Tried wiping the living room MiBox (Remote Control App finally worked) but nothing. What's the secret sauce, is this server side? Anybody figured it out?
I actually was on the phone with a Google rep about this last night and tonight. We went down a crazy path trying all kinds of stuff. After about a combined two hours he finally escalated the issue up. When he returned he told me it's being looked at, took some of my info and told me the feature is being rolled out still and there are still devices that need to be updated... So who knows?