mne_epochs2mat - unusual output

This is part of the output when using the function mne_epochs2mat -

*** glibc detected ***
/usr/pubsw/packages/mne/nightly_build/bin/mne_epochs2mat.bin: double free
or corruption (out): 0x00000000115bc1a0 ***

Than it aborts.

Not sure what to do with this.

-Ricky