Assertion failure: No default instance when creating object. You must have at least one instance of every object type in at least one layout. This will be fixed in a future build...
Sorry to be pushy but will this be addressed soon? I've deleted all of my game's levels in order to remake them from scratch, but the default instances went with them. I'm not sure which objects aren't in certain layouts already, so it seems I'll have to add one of every single [created] object to the opening layout to get past this. More of an inconvenience than anything, but eh.