There's nothing wrong with your ports... it seems a bug while parsing the library. Please
- download the version from link in first message (had to change a line to fix the logging)
- put this file: https://drive.google.com/file/d/0B-5iLIByS2U9aVpDZFRidDNYQ3M/edit?usp=sharing into musicbee "AppData" directory. If you have a portable version it's just "AppData" under musicbee directory, otherwise you'll have to find the file "MusicBeeSettings.ini" in your harddrive to understand where that directory is (should be under %APPDATA% I suppose?).
- create a directory C:\temp
- start musicbee, a file "log.txt" should be created in C:\temp
let me see what that log looks like...