Any music files I loop keep saying "stereo sound detected" when they are mono.

[xSetrox]

Hey,
for some reason, any music files I loop say "stereo sound detected- deleting datablock" when they are, in fact, mono.
-They are ogg vorbis
-They are under 1MB
-They are mono, I clicked split stereo to mono.
Please help.
Example file: http://hostr.co/NH773nsVECDX

[Ad Bot]

[Zoshi]

It's definitely mono in Audacity, and it definitely deleted the datablock when I loaded it. Strangely though, Audacity said that it tried to open it with an Mpeg library but failed the first time I loaded it, even though it's clearly an ogg file.

Anyway, I re-exported it with Audacity and it works fine after that.