I got a reply from Twitch Support about my Dual Format issue.
Unfortunately, they completely misunderstood the problem.
They replied:
“I'm sorry to know that you're not able to create the clips in dual format.”
and then told me to restart the Twitch app and use the “Go to Vertical View” button.
But that's not the issue at all lol
My problem is that I cannot get a Dual Format broadcast to go ONLINE on my existing Twitch account.
The stream data is reaching Twitch — Inspector shows both horizontal and vertical bitrates — but the session itself never gets properly established. On the affected account, Inspector shows things like:
Session ID: N/A
Twitch Server: N/A
FPS: N/A
Streaming Tool: N/A
I tested OBS + Aitum Vertical, Streamlabs, Streamrun, Meld, and StreamElements, and they all had the same problem.
Then I created a brand-new Twitch account and tested the exact same PC, network, software, GPU, and settings.
It worked immediately.
The new account gets a valid Session ID and is correctly recognized as “Enhanced Broadcast (Dual Format)” in Twitch Inspector.
So I strongly suspect something is wrong with the backend state of my existing Twitch account.
Now I just need to convince Twitch Support that I'm not asking about the mobile app or Dual Format clips.
Hopefully the next reply will actually address the issue.
I finally figured out something interesting about my Twitch Dual Format streaming issue. @TwitchSupport
I spent a lot of time troubleshooting because Dual Format would never go ONLINE on my main Twitch account, even though Twitch Inspector clearly showed that both the horizontal and vertical video bitrates were being received.
I tried basically everything I could think of:
• OBS Studio 32.2.2 and 32.1.x
• Aitum Vertical 1.6.4
• 1920×1080 + 1080×1920
• 1920×1080 + 720×1280
• Reinstalling Aitum Vertical
• Different Multitrack Video settings
• Streamlabs
• Streamrun
• Meld
• StreamElements
My normal 2K Enhanced Broadcasting stream works perfectly on the same PC, GPU, network, and Twitch account.
My Twitch account also shows Dual Format, 2K Streaming, and server-side transcoding as available.
The really weird part was Twitch Inspector.
For the Dual Format stream, it would show the incoming bitrates for both tracks, but things like:
Session ID: N/A
Twitch Server: N/A
FPS: N/A
Streaming Tool: N/A
Using ?bandwidthtest=true showed the same thing: the horizontal track was recognized, but the vertical track wasn't properly established.
Then I created a brand-new Twitch account and tested the EXACT same setup.
Same PC.
Same network.
Same OBS.
Same Aitum version.
Same settings.
And Dual Format worked immediately.
So at this point, I'm pretty convinced this is an account-side Twitch issue rather than an OBS/Aitum/hardware problem.
I've posted about it in the Twitch Dual Format community as well, so hopefully someone can shed some light on what might be happening behind the scenes.
Honestly, after all that troubleshooting, discovering that "new account = works, old account = doesn't" was both incredibly satisfying and incredibly frustrating 😂
If anyone has seen a similar account-specific Dual Format issue, I'd love to hear about it.
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