You indicate that your using the 'Play With' context menu option to play the file. Have you tried starting PowerDVD first and then navigating to the file thru PowerDVD to start it? I would not expect it to work any better but you may get some kind of message as to why it doesn't work (or maybe not. The link indicates that PowerDVD 17 supports HEVC* (asterix indicates not all versions are supported - I take that as not all PowerDVD 17 versions) The About PowerDVD window opens and identifies your Power DVD Version. To determine your version, click or touch the CyberLink PowerDVD heading in the upper left corner of the main menu. But it wouldn't hurt to ask your questions in a Cyberlink PowerDVD forum. This document addresses CyberLink PowerDVD Versions 10, 11, and 12. Unfortunately, I don't think there will be much joy in contacting Cyberlink about it since the version of PowerDVD is older. but not in PowerDVD then the issue is with PowerDVD (or maybe in this case HBOMax).

If the file won't play even in another Player (ex. Sure, it is possible that the file was corrupted during download. PowerDVD is the ultimate video playing software, with support for new technologies like 4K Blu-ray and 360-degree VR. If PowerDVD cannot play that file it most likely is not an AnyStream issue. AnyStream is doing exactly what AnyStream is suppose to do, Download a file.

What does cyberlink powerdvd 17 do