Strange issue here, not sure if I'm doing something wrong.
When I launch SLR daydream the previews and videos come up as a single widescreen image (as a normal landscape app would be), rather than the side by side single eye views with head tracking as expected. This occurs whether I launch it from within the daydream home, or the SLR Daydream launcher.
The daydream controller, navigation, and playback all work perfectly. All other daydream apps that I've tried work fine, and the SLR cardboard works well. However I'd much prefer to use the daydream controller than the head pointing.
Is there some setting that I'm missing to force it into 3d mode?