The current version of Streamfab no longer performs remuxing... Neither with Apple TV nor with Disney+... Everything was normal until yesterday. I always used to remux as mkv (ffmpeg), everything worked fine with Disney in 4k until I tried Apple today, since then nothing works anymore. 1080p seems to work on Disney.

Are you certain of your diagnosis, and it's not the case of your computer working really hard to process (read: decrypt) a 10GiB or so file (yup that takes a while!)? I've been hammering ATV 4K with 6266 and seems to be fine (other than the track selection bug)

My computer is a monster, really. Ryzen 9, Nvidia 4060 Ti with 64GB RAM. It stopped remuxing after I tried Apple TV. Streamfab just freezes after decryption. I uninstalled and reinstalled Streamfab. No change.

you can have a 128 core Epyc, but that won't help in the circumstances; for reference, an episode of ATV on my computer takes about 6 minutes from download to finish writing (and that's with a 2.5Gbps Internet connection, a local RAM disk for TEMP and an iSCSI mounted RAM disk for the OUTPUT folder on a 10GbE backbone).

The issue is that it worked fine until the Apple TV test. 4K and 1080p were no problem.

Use the task manager to find out what's hogging the system, SF logs, SSD wear, so many things that could contribute- what I'm driving at is that the problem seems to be unique to your setup

I've already checked everything, nothing unusual. Streamfab just stops working... So I'm waiting for an update; maybe it'll work again then...

Update: Downgraded to 6264 remuxed back to 4K from Disney... Update2: Okay... Something must have happened to my computer, because even the previous version freezes... How do I do a clean reinstall of Streamfab so that all temporary data, settings, and registry files are completely gone?! Streamfab freezes during "GPU Video Decode"! How can I fix this problem?

Okay, one more time, until there's a fix. I'll show you my Task Manager and the log. The program was expensive, I'm requesting a fix. I heard from a user on Reddit that he has the same problem.! [upl-image-preview uuid=099b485e-e58e-43a2-9b34-458b0fa2fb05 url=https://forum.dvdfab.cn/assets/files/2025-11-24/1764010076-982673-img-6932.jpg alt={TEXT?}] >![upl-file uuid=dbdf727b-cc3d-4c25-ac40-6faf844de726 size=164kB]streamfab.log[/upl-file] !<

What can I say... MP4 output works, takes 7 minutes from completing the download to having the final MP4... What does your cefmedia.log say? [upl-image-preview uuid=77df585d-518e-46fc-a99f-db83769c083e url=https://forum.dvdfab.cn/assets/files/2025-11-24/1764013661-992675-image.png alt={TEXT?}]

Freezes during remuxing

TheCableGuy

Okay, one more time, until there’s a fix.

I’ll show you my Task Manager and the log.

The program was expensive, I’m requesting a fix. I heard from a user on Reddit that he has the same problem.!

streamfab.log

164kB

KidJoe

TheCableGuy
Share your StreamFab logs. That will give a much better picture of what is going on with StreamFab for others to determine where the problem is.

0xFeedBeef

What can I say… MP4 output works, takes 7 minutes from completing the download to having the final MP4… What does your cefmedia.log say?

TheCableGuy

I’ve discovered that Streamfab is decrypting the data. So I can access the temporary output and manually remux the data. That works. However, it freezes at the next step. I’ve also noticed that the analysis takes an extremely long time with Disney content, for example, and with series like The Simpsons, it only manages four episodes before freezing.

qef.log

21kB

streamfab.log

608kB

0xFeedBeef

TheCableGuy cefmedia.log literally tell you every step of remux (including the command line), and it’s the only log you’ve not included

TheCableGuy

The file is strangely empty.

0xFeedBeef

TheCableGuy ok, try changing the output to MP4 instead of MKV?

TheCableGuy

Okay, I tried “Finch” and it worked. I already tried setting it to MP4, but unfortunately, that didn’t change anything. It’s also strange that the Disney content isn’t working well anymore. Which is a real shame for me.

OptionX

I’m experiencing the same. Disney used to work just fine on 6.2.6.3 and after they added Apple tv 4k Disney downloads freeze after it downloads the data.

TheRaven

I have given up on Apple for now. Extremely slow downloads and slow processing. Also randomness on what you get. Specify HDR10, sometimes get it, sometimes get Dolby, even got an SDR once. And no forced subs, which they say they are working on.
After saying that, I have had no issues with Disney4K and I’ve been getting a bunch. It’s slow, but always has been.

Momokp

He’s not wrong. Mine also freezes up during the progress/remux section.

P.S. I’m on my third attempt at downloading one film. Hopefully the problem fixed or it being worked on.

0xFeedBeef

Momokp https://www.chiark.greenend.org.uk/~sgtatham/bugs.html

Wilson.Wang

The dev is checking for the problem.

Wilson

ChisumMP

If it helps:
-When leaving the mouse (wireless) untouched while SF is downloading and processing: No Freeze
-When moving the mouse curser regularily while SF is downloading and processing: No Freeze
-When leaving the mouse untouched for 25 minutes and then resume moving the curser while SF is processing, Program freezes and Windows asks if to wait or close SF.

Momokp

ChisumMP

Mine freezed even with your first two suggestions,but I’m glad they are looking into it.

Wilson.Wang

Please try the test version and tell me the result.

https://dl.dvdfab.cn/download/StreamFab_x64_6267official_2025_11_27_19_35_12_utility_tool_dev_vs2019_streameta_dev_vs2019_qtnm_c0217676.exe

Thanks

Sebastian001

Wilson.Wang Is Fast Start disabled in the beta version?

Germania

Sebastian001 Is Fast Start disabled in the beta version?

Nope, faststart is unchanged with this test version

btw: I never had a freeze or crash during analysis, download or remux ..
.. only two SF freezes with 6264-6 after successful downloads.
So I couldn’t see any difference at first glance.

Sebastian001

Germania Me To

Sudopian

So far Apple TV works with forced subtitles and no freeze … will try Disney+ next