Win 8.1x64 3x gtx580
**Short description of error**
When viewport is unlocked from global layers, dupliverts are displayed only when they are in a layer that is visible for rendering. Don't know if it is a bug or has some reasoning behind, but it is not mentioned in the manual and seems not to be logically tied to anything either. Stumbled upon why dupliverts aren't displayed purely by accident.
**Exact steps for others to reproduce the error**
- Press "M" and then "2", to move selected objects to layer 2.
- Dupliverts disappear.