I’m using the latest version of brave:
0.66.101 Chromium: 75.0.3770.142 (Official Build) (64-bit)
Widevine Content Decryption Module - Version: 4.10.1440.18
Same here, my original problem with Amazon Prime Music is back after the latest Brave version update…just never got around to reporting it again.
Problem returned with “Version 0.66.101 Chromium: 75.0.3770.142 (Official Build) (64-bit)” on MacOS 10.14.5 “Mojave”. Was OK with “Version 0.65.121 Chromium: 75.0.3770.100 (Official Build)(64-bit)”.
BTW: Amazon Music is working when I’m playing music which I own. If the music is part of the subscription the dialog comes up. Seems Amazon is checking here differently…