mpv hangs when playing livestream with `--gpu-api=vulkan`, `gpu-next`, ewa filters and `scale-antiring`

mpv Information

mpv v0.41.0-dev-g115b87b52 Copyright © 2000-2026 mpv/MPlayer/mplayer2 projects
 built on Jul  9 2026 03:25:37
libplacebo version: v7.371.0
FFmpeg version: ff59522
FFmpeg library versions:
   libavcodec      62.28.102
   libavdevice     62.3.102
   libavfilter     11.14.102
   libavformat     62.12.102
   libavutil       60.26.102
   libswresample   6.3.102
   libswscale      9.5.102

Other Information

- Windows version: Windows 11 25H2 Build 26200.8737
- GPU model, driver and version:
-NVIDIA GeForce 920 MX, version 582.28
- Source of mpv: Github CI
- Latest known working version: v0.41.0
- Issue started after the following happened: Trying to watch Youtube livestream

Reproduction Steps

Requires very specific setup. It must be a one-off livestream (not those 24 hours ones), --vo=gpu-next, --gpu-api=vulkan, and ewa_* filters and --scale-antiring set. When the window shows up, wait for a moment and then go into fullscreen. After a while, mpv will hangs and becomes not responsive.
Other than that, it works everywhere. Tried d3d11, without profile, vo=gpu, --scale=ewa_* alone and --scale-antiring alone, even tried with those 24/7 livestreams, all worked.
Unfortunately the last version that worked is the stable version v0.41.0, but fortunately the artifact from SourceForge is still there.
https://sourceforge.net/projects/mpv-player-windows/
mpv-x86_64-v3-20251228-git-a58dd8a
Build 2025-12-28 doesn't work, so it's the commit between 2025-12-22 and 2025-12-28. Idk if this is from mpv or ffmpeg side.

Expected Behavior

Should be working.

Actual Behavior

When starting mpv, it starts windowed. Then after the livestream is playing, attempting to make it full screen will hang after around 5 seconds, no response at all.

Log File

output.txt

Sample Files

No response

I carefully read all instruction and confirm that I did the following:

• I tested and confirmed that the issue exists with the latest release version or newer.
• I provided all required information including system and mpv version.
• I produced the log file with the exact same set of files, parameters, and conditions used in "Reproduction Steps", with the addition of --log-file=output.txt.
• I produced the log file while the behaviors described in "Actual Behavior" were actively observed.
• I attached the full, untruncated log file.
• I attached the backtrace in the case of a crash.

Start with the attached output.txt and reproduce the hang using the exact Vulkan, gpu-next, EWA filter, scale-antiring, fullscreen, and livestream setup described. Compare the working v0.41.0 build with builds from the 2025-12-22 to 2025-12-28 range; done means identifying the regression or confirming a fix that prevents the fullscreen livestream hang.