I'm sure I've seen a thread on this somewhere recently... I'm using room drawings that are shared between members of the organization I work for, and the sheet views are pre-made as well. Whenever I add truss, fixtures etc. to the empty room, when I switch to a sheet view some of the stuff will show up and some of it won't. In this case my truss lines still show up but the instruments on them disappear. I'm sure there's an easy fix, just need pointed in the right direction. Thanks!