Miraclebox Micro Premium 1, latest VIX & Open PLI this happens, however you can change this setting in the GUI rather than changing the config file.
DM800HD same thing with recent images, resolved in the same way, however that's just an image I've modified to run on this box so others won't come across
this on that particular device.
And the Octagon SF4008 there are reports of this and changing this setting resolves the issue.