AnyStream is having some DRM issues currently, download with some streaming providers (Netflix) might not always work.
Situations like this will always happen with AnyStream: streaming providers are continuously improving their countermeasures while we try to catch up, it's an ongoing cat-and-mouse game. Please be patient and don't flood our support or forum with requests, we are working on it 24/7 to get it resolved, but it will take a few days. Thank you.