auto profile switches from `hwdec=auto-copy` to `hwdec=auto` and selects the wrong decoder.

mpv Information

mpv v0.40.0-216-g440f35a26 Copyright ?? 2000-2025 mpv/MPlayer/mplayer2 projects
 built on Jul 16 2025 14:07:05
libplacebo version: v7.351.0 (v7.351.0-23-g69653ce-dirty)
FFmpeg version: N-120302-gbfab02629
FFmpeg library versions:
   libavcodec      62.8.100
   libavdevice     62.0.100
   libavfilter     11.2.100
   libavformat     62.1.103
   libavutil       60.5.100
   libswresample   6.0.100
   libswscale      9.0.100

Other Information

- Windows version: Microsoft Windows [Version 10.0.26100.4946]
- GPU model, driver and version: GTX 1650, Studio, 580.97
- Source of mpv: https://github.com/zhongfly/mpv-winbuild/releases
- Latest known working version: Unknown
- Issue started after the following happened: Unknown

Reproduction Steps

Create portable_config
Add mpv.conf:

profile=high-quality
glsl-shader="~~/FSRCNNX_x2_16-0-4-1.glsl"
glsl-shader="~~/KrigBilateral.glsl"

fs=yes
keep-open=yes
hr-seek=yes
keep-open-pause=no
auto-window-resize=no
osd-bar-border-size=0.5
image-display-duration=0.4
input-default-bindings=no
watch-later-options-remove=pause

demuxer-max-bytes=1GiB
demuxer-max-back-bytes=1GiB
directory-mode=recursive
autocreate-playlist=filter

osd-bar-align-y=-0.98
osd-border-size=1
osd-font-size=30

alang=ja,en
volume-max=100

hwdec=auto-copy
target-colorspace-hint=yes
video-sync=display-resample

sub-auto=fuzzy
sub-fonts-dir=Fonts
sub-file-paths=Subs;eng;sub

screenshot-format=png
screenshot-png-compression=0

ytdl-raw-options=playlist-end=100

log-file=test.txt

# Profiles
[Switch from FSRCNNX x16 to FSRCNNX x8]
profile-cond=p["frame-drop-count"]>50 or p["mistimed-frame-count"]>50 or p["vo-delayed-frame-count"]>50
glsl-shaders-remove="~~/FSRCNNX_x2_16-0-4-1.glsl"
glsl-shaders-remove="~~/KrigBilateral.glsl"
glsl-shader="~~/FSRCNNX_x2_8-0-4-1.glsl"
glsl-shader="~~/KrigBilateral.glsl"
profile-restore=copy

[Turn off FSRCNNX x8 and KrigBilateral]
profile-cond=p["frame-drop-count"]>100 or p["mistimed-frame-count"]>100 or p["vo-delayed-frame-count"]>100
glsl-shaders-remove="~~/FSRCNNX_x2_8-0-4-1.glsl"
glsl-shaders-remove="~~/KrigBilateral.glsl"
profile-restore=copy

[Dropped frames]
profile-cond=p["frame-drop-count"]>30 or p["mistimed-frame-count"]>150 or p["vo-delayed-frame-count"]>150
hwdec=auto

Also add the correct user shaders.
Use yt-dlp to download https://www.youtube.com/watch?v=pQV8Xz2-SS0
Play the video.

Expected Behavior

hwdec=d3d11va

Actual Behavior

auto profile switches from hwdec=auto-copy to hwdec=auto and selects the wrong decoder.

[   0.181][v][vd] Requesting pixfmt 'd3d11' from decoder.
[   0.211][i][vd] Using hardware decoding (d3d11va-copy).
[   1.486][w][vd] Error while decoding frame (hardware decoding)!
[   1.489][v][vd] Attempting next decoding method after failure of vp9-d3d11va-copy.
[   1.489][d][vd] Skipping previously attempted hwdec: vp9-d3d11va
[   1.489][d][vd] Skipping previously attempted hwdec: vp9-vulkan
[   1.489][d][vd] Skipping previously attempted hwdec: vp9-nvdec
[   1.489][d][vd] Skipping previously attempted hwdec: vp9-vaapi
[   1.489][d][vd] Skipping previously attempted hwdec: vp9-d3d11va-copy
[   1.489][v][vd] Looking at hwdec vp9-vulkan-copy...
[   1.604][v][vd] Requesting pixfmt 'vulkan' from decoder.
[   1.606][d][ffmpeg/video] vp9: Vulkan decoder initialization successful
[   1.615][i][vd] Using hardware decoding (vulkan-copy).

Log File

test.txt

Sample Files

https://www.youtube.com/watch?v=pQV8Xz2-SS0

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

• I tested with the latest mpv version to validate that the issue is not already fixed.
• 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 by reproducing the behavior with the listed portable_config/mpv.conf settings and inspect the attached test.txt log. Trace the profile transition from hwdec=auto-copy to hwdec=auto and the subsequent decoder fallback; done means the dropped-frames profile selects the expected decoder behavior instead of the wrong fallback.