Repository: yt-dlp
Issue: [Dropbox] Error: No video formats found!
Labels: NSFW,site-bug,triage

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

- [x] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field

### Checklist

- [x] I'm reporting that yt-dlp is broken on a **supported** site
- [x] I've verified that I have **updated yt-dlp to nightly or master** ([update instructions](https://github.com/yt-dlp/yt-dlp#update-channels))
- [x] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [x] I've checked that all URLs and arguments with special characters are [properly quoted or escaped](https://github.com/yt-dlp/yt-dlp/wiki/FAQ#video-url-contains-an-ampersand--and-im-getting-some-strange-output-1-2839-or-v-is-not-recognized-as-an-internal-or-external-command)
- [x] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues **including closed ones**. DO NOT post duplicates
- [x] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [x] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and I'm willing to share it if required

### Region

World

### Provide a description that is worded well enough to be understood

This is the only video that returns this error
https://www.dropbox.com/s/fnxkf6gvr9zl7ow/IMG_3996.MOV?dl=0
I tried the full link and its the same
https://www.dropbox.com/scl/fi/8n13ei80sb3bmfm9nrcmw/IMG_3996.MOV?rlkey=t2mf7yg8m0vzenb432bklo0z0&e=1&dl=0

There is a playable video and it should download like all others
I tried everything in my power to fix it without results
Dont judge me on the video lmao

### Provide verbose output that clearly demonstrates the problem

- [x] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [ ] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [x] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
[debug] Command-line config: ['-vU', '-P', '/Archive/Twerk/KateCakes/', 'https://www.dropbox.com/s/fnxkf6gvr9zl7ow/IMG_3996.MOV?dl=0']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version stable@2025.01.15 from yt-dlp/yt-dlp [c8541f8b1] (zip)
[debug] Python 3.12.3 (CPython x86_64 64bit) - Linux-6.8.0-51-generic-x86_64-with-glibc2.39 (OpenSSL 3.0.13 30 Jan 2024, glibc 2.39)
[debug] exe versions: ffmpeg 6.1.1 (setts), ffprobe 6.1.1
[debug] Optional libraries: Cryptodome-3.20.0, brotli-1.1.0, certifi-2023.11.17, mutagen-1.46.0, pyxattr-0.8.1, requests-2.31.0, sqlite3-3.45.1, urllib3-2.0.7, websockets-10.4
[debug] Proxy map: {}
[debug] Request Handlers: urllib
[debug] Loaded 1837 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Latest version: stable@2025.01.15 from yt-dlp/yt-dlp
yt-dlp is up to date (stable@2025.01.15 from yt-dlp/yt-dlp)
[Dropbox] Extracting URL: https://www.dropbox.com/s/fnxkf6gvr9zl7ow/IMG_3996.MOV?dl=0
[Dropbox] fnxkf6gvr9zl7ow: Downloading webpage
ERROR: [Dropbox] fnxkf6gvr9zl7ow: No video formats found!; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U
Traceback (most recent call last):
  File "/home/ok/.local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1637, in wrapper
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ok/.local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1793, in __extract_info
    return self.process_ie_result(ie_result, download, extra_info)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ok/.local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1852, in process_ie_result
    ie_result = self.process_video_result(ie_result, download=download)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ok/.local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 2859, in process_video_result
    self.raise_no_formats(info_dict)
  File "/home/ok/.local/bin/yt-dlp/yt_dlp/YoutubeDL.py", line 1126, in raise_no_formats
    raise ExtractorError(msg, video_id=info['id'], ie=info['extractor'],
yt_dlp.utils.ExtractorError: [Dropbox] fnxkf6gvr9zl7ow: No video formats found!; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U
```