Brushes and models disappear in radiant

Game Modding | Call of Duty: Black Ops 3 | Radiant

MyNameIsNobody:

Brushes and models disappear at a distance unless I switch to game view mode. How can I fix this? it hinders my ability to map efficiently.

Spiki:

untick that
or click the + and - to change distance

MyNameIsNobody:

untick that
or click the + and - to change distance