Mixxx 2.5.1 Windows 10 Drag and drop impossible

It can be same as this ?

https://bugs.launchpad.net/mixxx/2.1/+bug/1751482

I cannot reproduce the issue on Win10 64 using Mixxx 2.1.5 64 bit.
Maybe it is related to the path of the tracks.
Is there something suspicious in the log file?
https://www.mixxx.org/wiki/doku.php/finding_the_mixxx.log_file
Are all tracks effected.
Does dropping from the windows explorer work?

-Nothing suspicious noticed in the log file as far as I am aware.
-All tracks are affected.
-Dropping from Windows Explorer does not work neither.

Hope that helps.

Can you post the lines that are logged when dropping the file from Windows Explorer?
Mine are:

Debug [Main]: TrackDAO::getTrackId(): Track location not found in library: "/home/daniel/60.wav"
Debug [Main]: SqlTransaction - Started new SQL database transaction on "MIXXX-1"
Debug [Main]: GlobalTrackCache - Resolving track by canonical location "/home/daniel/60.wav"
Debug [Main]: GlobalTrackCache - Cache miss - allocating track ["/home/daniel/60.wav" | "/home/daniel/60.wav" | -1]
Debug [Main]: GlobalTrackCache - Cache miss - inserting new track into cache ["/home/daniel/60.wav" | "/home/daniel/60.wav" | -1] QObject(0x0)
Debug [Main]: SoundSourceProxy - SoundSourceProvider "libsndfile" created a SoundSource for file "file:///home/daniel/60.wav" of type "wav"
Debug [Main]: TagLib - No cover art: None or empty list of ID3v2 APIC frames
Debug [Main]: SoundSourceProxy - Initializing track metadata and embedded cover art from file "file:///home/daniel/60.wav"
Debug [Main]: SoundSourceProxy - Adding missing artist/title from file name "file:///home/daniel/60.wav"
Debug [Main]: SoundSourceProxy - No embedded cover art found in file "file:///home/daniel/60.wav"
Debug [Main]: TrackDAO: Adding track "/home/daniel/60.wav"
Debug [Main]: SqlTransaction - Committed SQL database transaction on "MIXXX-1"
Debug [Main]: BaseTrackCache(0x435d320) updateIndexWithQuery took 0 ms
Debug [Main]: BaseTrackPlayerImpl::slotLoadTrack "[Channel1]"
Debug [Thread (pooled)]: CoverArtCache - Guessing cover art for "/home/daniel/60.wav"
Debug [Thread (pooled)]: SoundSourceProxy - SoundSourceProvider "libsndfile" created a SoundSource for file "file:///home/daniel/60.wav" of type "wav"
Debug [Thread (pooled)]: TagLib - No cover art: None or empty list of ID3v2 APIC frames
Debug [Thread (pooled)]: CoverArtUtils::guessCover didn't find art "CoverInfo(NONE,GUESSED,,0x0,/home/daniel/60.wav,)"
Debug [CachingReaderWorker 1]: SoundSourceProxy - SoundSourceProvider "libsndfile" created a SoundSource for file "file:///home/daniel/60.wav" of type "wav"
Debug [CachingReaderWorker 1]: SoundSourceProxy - Opening file "file:///home/daniel/60.wav" with provider "libsndfile" using mode Strict
Debug [Main]: BaseTrackPlayerImpl::slotTrackLoaded
Debug [AnalyzerQueue 1]: AnalyzerQueue - Analyzing "60" "/home/daniel/60.wav"
Debug [Main]: WCoverArt::slotCoverFound WCoverArt(0xabde930, name = "DeckCoverArt") "CoverInfoRelative(NONE,GUESSED,,0x0)" QSize(0, 0)
Debug [AnalyzerQueue 1]: SoundSourceProxy - SoundSourceProvider "libsndfile" created a SoundSource for file "file:///home/daniel/60.wav" of type "wav"
Debug [AnalyzerQueue 1]: SoundSourceProxy - Opening file "file:///home/daniel/60.wav" with provider "libsndfile" using mode Strict
Debug [Main]: WSpinny::slotCoverFound WSpinny(0xc7a5050) "CoverInfoRelative(NONE,GUESSED,,0x0)" QSize(0, 0)
Debug [AnalyzerQueue 1]: AnalysisDAO fetched 0 analyses, 0 bytes for track 2232 in 0 ms
Debug [AnalyzerQueue 1]: VampAnalyzer BlockSize: 1024
Debug [AnalyzerQueue 1]: VampAnalyzer StepSize: 512
Debug [AnalyzerQueue 1]: Beat calculation started with plugin "qm-tempotracker:0"
Debug [AnalyzerQueue 1]: VampAnalyzer BlockSize: 32768...

@kek001 (kek001)
This is another issue. I have faced what you wrote in the past but not now with 2.3.0 master latest versions. Now mouse selects tracks correctly.

@Frankie Deschacht (beheer-0)
I have faced exactly the same issue once in my win 7 in mixxx version 2.0 a year ago, maybe more.
I ran the installer by right click and run as Administrator.
It seemed that it installed correctly but the drag and drop function didn't work at all. Obviously something with the permissions messed up. I copied my database then uninstalled Mixxx completely, reinstalled by simply double click the installer .exe file, copied the database back in Application data/local/mixxx and the problem was solved. Drag and drop worked fine from the library to decks from windows explorer to decks and from windows explorer to database.
I reproduced the situation several times in win 7. Each time I ran the installer as Administrator the result was the same, no drag and drop in Mixxx.

It might be the same for you. Please try it.

@Daniel Schürmann (daschuer) If you can try it and if you be able to reproduce it and verify it I think that a note in the website and in the manual like "do not run installer as Administrator" would be helpful for many people. Working as a technician for a very long time showed to me that many people run installers as Administrator thinking that if they do that they will have less or no problems during installation.

I hope I helped just a little bit.
Thanks for your time.

Interesting:
https://superuser.com/questions/59051/drag-and-drop-file-into-application-under-run-as-administrator

However this does not explain that drag and drop from playlists to decks is also effected.
Can one check this?

We have a version with more debug info.
http://downloads.mixxx.org/builds/2.1/release/mixxx-2.1.8-2.1-git6827-release-x64.exe

Please check if the issue still persists. If yes close mixxx and attach the mixxx.log file.
https://mixxx.org/wiki/doku.php/finding_the_mixxx.log_file

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/9541