@augustf I am unable to reproduce this (even when I force a failure with the raise command).
If you remove libreoffice/GM/IM, that should do it.
@augustf still cannot duplicate even when using 0.8.5 vm, (using Chrome).
As I've noticed with a few of these issues I've had, you may want to trying using the latest Firefox.
fix #882 if preview exists it should be the only media record