Drag-and-drop subtitles not allowed when mpv launched from qBittorrent

mpv Information

mpv v0.38.0-706-ga3baf94a Copyright © 2000-2024 mpv/MPlayer/mplayer2 projects
 built on Aug 17 2024 00:13:00
libplacebo version: v7.349.0 (v7.349.0-5-g82bf46a-dirty)
FFmpeg version: N-116720-g5c1c0325c
FFmpeg library versions:
   libavcodec      61.11.100
   libavdevice     61.2.100
   libavfilter     10.2.102
   libavformat     61.5.101
   libavutil       59.34.100
   libswresample   5.2.100
   libswscale      8.2.100

Other Information

- Windows version: Microsoft Windows NT 10.0.19045.0/19045.4957
- GPU model, driver and version: NVIDIA GeForce RTX 3060 Laptop GPU, version 32.0.15.6070
- Source of mpv: Windows builds by shinchiro (git)
- Introduced in version:

Reproduction Steps

1. Double-click on a video file in qBittorrent with mpv set to the default application
2. The file opens in mpv
3. Attempt to drag and drop the appropriate subtitle file into the mpv window

Expected Behavior

The subtitle should be added to the player upon releasing the mouse button.

Actual Behavior

The cursor changes to the below icon and the subtitle does not get added to mpv despite releasing the mouse button.

Log File

output.txt

Sample Files

No response

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.

Reproduce the qBittorrent launch scenario on Windows and compare it with launching mpv directly. Start with the attached output.txt and the documented reproduction steps; done means subtitle files can be dragged into mpv and are added when mpv was opened from qBittorrent.