MediaInfo not working

Hi everyone!

Right now, I’ve got a problem with file infos when I scan my library with tinyMediaManager for new movies : some of them are analyzed and nfo fields are correctly filled, but some not.
All I have in the log file is this kind of line :

Code:
ERROR [tmmpool-mediainfo-thread-1] o.t.core.entities.MediaFile:734 - MediaInfo could not open file
ERROR [tmmpool-mediainfo-thread-1] o.t.core.entities.MediaFile:1441 - error getting MediaInfo

They’re nothing wrong with the related videos on vlc, wmp and kodi.
I can even display their media infos on vlc.

What can I do?
Is this a bug introduced by the lastest version of tMM?

Is there a way to force a MediaInfo scan only (without scrapping)?
All the other fields (synopsis, genres, titles, actors,…) are filled and I have already corrected them.
I really don’t want to do it again Confused

Thanks.