Multiple sounds seem to have issues

[Qwertygiy]

I created a new sound in the Script Builder while one was playing, and it stopped playing the old one. I then tried playing both at once (both mp3s) and the first would cut out right after the second started, while the second would play a bit scratchily for a few more seconds before going out.

When in the editor, this pops up in the output:

java.lang.NullPointerException
at a.a.b.a.a(Player.java:82)
at net.buildism.object.Sound$4.run(Sound.java:145)
at net.buildism.object.Sound.run(Sound.java:218)
at java.lang.Thread.run(Unknown source)