Context menu not working after upgrade 2.44 to 2.45


After updating from 2.44 to 2.45 I can't add files through the context menu in Windows Vista x64 anymore, something which worked perfectly before. Either by selecting a folder or its contents or just one title, it just switches to the MP3TAG screen but it doesn't load the files. So the entry hasn't disappeared, it's just no longer working.

I tried un-installing and re-installing, that doesn't solve it either. Filetypeman shows mp3tag where it's supposed to. Using CTR-D to select the directory I want to edit still works. Any suggestions?