[Plugin: Audio Player] Buffers … but never plays

I installed this and the first time around, it worked perfectly. In fact, I was heading over to make a donation but decided to listen to the files once more first.

On every subsequent attempt, the plug in shows “buffering” but never plays.

I’ve tried two different codes:

[audio:http://shintest.com/wp-content/uploads/2012/04/shoshinge.mp3%5D — via the media library,
and
[audio:http://shintest.com/audio/shoshinge.mp3%5D after ftp’ing the files to the /audio folder.

This issue seems to have appeared in other comments, but no response has been made from the plug in developer. Hope someone can come up with a solution!

http://ww.wp.xz.cn/extend/plugins/audio-player/