Failed to load file '/preview/278395.mp3'.

[DuloT34]

Version: 0.8.0
Build date: 2015-03-20 04:45
OS: Linux (amd64)
JRE: 1.7.0_75
Error: Failed to load file '/preview/278395.mp3'.
Stack trace:

java.lang.IllegalArgumentException: Invalid format
    at org.classpath.icedtea.pulseaudio.PulseAudioDataLine.createStream(PulseAudioDataLine.java:142)
    at org.classpath.icedtea.pulseaudio.PulseAudioDataLine.open(PulseAudioDataLine.java:99)
    at org.classpath.icedtea.pulseaudio.PulseAudioDataLine.open(PulseAudioDataLine.java:283)
    at org.classpath.icedtea.pulseaudio.PulseAudioClip.open(PulseAudioClip.java:402)
    at itdelatrisu.opsu.audio.MultiClip.getClip(MultiClip.java:164)
    at itdelatrisu.opsu.audio.MultiClip.<init>(MultiClip.java:94)
    at itdelatrisu.opsu.audio.SoundController.loadClip(SoundController.java:118)
    at itdelatrisu.opsu.audio.SoundController.playTrack(SoundController.java:336)
    at itdelatrisu.opsu.states.DownloadsMenu$2.run(DownloadsMenu.java:488)

[itdelatrisu]

Does this happen for every beatmap you try to preview, or only sometimes?

[DuloT34]

Only sometimes.

[itdelatrisu]

Should be fixed -- it might have just been trying to play an incomplete file, and for some reason that exception wasn't being handled. Thanks for reporting this!