You own v5, but you accidentally downloaded v6. The key “doesn’t work” until you realize your mistake. You either pay for the upgrade or roll back to v5. This is by design—major versions represent years of development.
However, a common search query plagues newcomers and frustrated users alike: — why isn't it working? Where do I find it? Is it cracked? soundsource license key work
Attempting to use a SoundSource 4 key on SoundSource 5 will not work. Users must ensure the software version matches the key generation. You own v5, but you accidentally downloaded v6