u/VagueGooseberry

WTF. Heading in to Avalon after about a weeks gap and all of Old Milton’s medians lie bare from Kimball bridge on.

Is Old Milton seeing an expansion ? Alpharetta is going to cook if all the green cover is lost.

[FIXED] tvOS 26.4 breaking HDCP on DRM apps (Amazon/Disney+) — anyone else?

Started today out of nowhere. Setup has been rock solid for a while:

What's happening:

• Amazon Prime Video blacks out the picture — audio only, no video
• Disney+ plays ads fine, then throws an HDCP error when the actual content starts
• Non-DRM apps work perfectly — Viki free tier and Infuse over SMB both play fine

The DRM-only pattern makes this pretty clearly an HDCP handshake issue, not a hardware fault.

Already tried:

• Reboot Apple TV
• Hard Reset LG TV ( long power down, to re-initiate HDCP handshake)
• Different HDMI cable
• Different HDMI port on the C1

Anyone else hitting this after tvOS 26.4? Curious if it's the new Continuous Audio Connection setting interfering with eARC or something on the Sonos side.

FIXED :

After attempting all other reboot scenarios short of Resetting the Apple TV as well power down over night, still had the same problem.

I finally went the public beta path of some of the suggestions here for 26.5 which currently is dispensing beta 4.

Post install reset still didn't fix it, but an additional reset after, the issue is gone. No more HDCP errors, no more blacked out video playback.