The text and sometimes the lines of my dimensions (created by smart dimensions) are disappearing.

I checked multiple threads here on the forum, but couldn't locate a similar issue.

I checked and validated the settings presented in https://forum.solidworks.com/message/717177?q=Dimensions%20are%20disappearing%20within%20sketch

I'm using SW 2015 Premium x64 edition, SP2.1

The numbers and lines are there, and appear and disappear when changing the 3D orientation of my view. However, it looks kind of random when I see my dimensions, and sometimes I see them partly,

Anyone encountered this problem before?