diff --git a/doc/bugs/tries_to_download_a_.mkv_video_without_yt-dlp/comment_1_2e9985ce63b112f40e76aa615ef6eca1._comment b/doc/bugs/tries_to_download_a_.mkv_video_without_yt-dlp/comment_1_2e9985ce63b112f40e76aa615ef6eca1._comment
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+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 1"""
+ date="2024-10-21T15:50:26Z"
+ content="""
+I suspect that one file has a "yt:" url recorded and the other one does not.
+That's not displayed by `whereis` but you can see it if you look at the 
+$key.log.web file in the git-annex branch.
+
+That typically would happen if you used `git-annex addurl --raw`,
+or added the url when yt-dlp was not working, although that doesn't explain
+how the youtube title got into the filename. (Maybe importfeed?)
+
+(I seemed to remember you having a similar problem before, and
+found <https://git-annex.branchable.com/todo/yt-dlp__58___parse__47__handle___40__error__41_____34__Video_unavailable__34__/>
+which seems possibly relevant to how this could have happened.)
+"""]]