I’ve been having the same issue with recent NOW download attempts.
I’ve just tried again with 7.0.4.2. and attached a log which shows:
1) The Rehearsal Season 1 Episode 1 gets the “Failed to obtain the decryption key” error.
2) Mortal Kombat 2 downloads in 720p.
The recent pattern as far as I can see is that brand new releases (e.g. Mortal Kombat 2) will download in 720p but anything older returns the “Failed to obtain the decryption key” error, although I think this has been a bit more random in recent weeks with some older shows downloading in 1080p but it definitely seems to have got worse.
I’m wondering if it’s connected to the Sky Showtime issues which seem similar [https://forum.dvdfab.cn/d/473146-skyshowtime-failed-to-obtain-the-decryption-key/7]
My theory 2 months ago in this post: https://forum.dvdfab.cn/d/469975-7026--only-limited-1080p-support/54 was that NOW TV is effectively separate catalogues:
a) If the film is listed on here: [https://www.artesea.co.uk/nowtv/movies.php]or the TV show is listed here: [https://www.artesea.co.uk/nowtv/boxsets.php] up until recently it was downloadable in 1080p. Now these shows are returning the "Failed to obtain the decryption key error.
b) If a film/TV series isn’t listed on the catalogues linked in a) it is downloadable in 720p. This “catalogue” still seems to be working.
So I think that means there’s now an issue with the catalogue a) above.
My Now TV subscription is still NOW Entertainment & HBO Max Membership & NOW Cinema with NOW Boost.
@Wilson.Wang please can you ask the developer to look into this.
Thanks.