Could be. If I delete the app connection in AlbyHub AND delete the Amethyst app data in my phone, and then reconnect NWC it will work for a couple days before it breaks again. Works fine anytime I try it with Primal. I think it's a stale cache issue.

It's likely a tor circuit building issue. Try clearing all data (not just cache) and signing back in, I'll bet you it starts working again. Fix hopefully in the next update.