Random crashes when dragging files

I'm not giving up on this yet. I've re-implemented drag and drop using plain IDataObject and IDropSource.

Please try reproducing the issue with this version (and send any crash reports, in case the problem persists).

https://download.mp3tag.de/support/874937CD-FE81-42C0-9D2A-694BB4B4CEC4-3-31-6-1/mp3tagv331f1-x64-setup.exe