Rooms Move When Drawing is Opened
When I open a drawing, the room outlines move to a new location. The rooms are all in the same relative location to each other but have all shifted or rotated by the same amount.​
Cause​
This typically happens when an alignment point has been modified, and the drawing is later closed without being saved.
When the alignment point is modified, the locations of the rooms relative to the alignment point are updated in the database. When a drawing is closed without being saved, the alignment point loses any changes made to it since the last save.
When the drawing is reopened, Design Master HVAC thinks the rooms are in the wrong location relative to the alignment point and "fixes" them.
Solution​
The solution to this problem is the same as the cause: modify the alignment point, then intentionally close the drawing without saving.
The vast majority of the time, making changes without saving is not recommended.
For this particular problem, it is necessary.
Before modifying the alignment point, save the drawing.
If the rooms all appear to have been rotated about the alignment point, you need to rotate the alignment point at the opposite angle. If the rooms all appear to have been shifted, you need to move the alignment point in the opposite direction.
If you aren't sure what to do, make a change and seeing what happens. If it turns out to be wrong, you can then make the change the other way. (Rotate clockwise, then rotate counterclockwise if that did not fix it; move left, then move right if that did not fix it.)
After you modify the alignment point, close the drawing and do not save it. When you reopen the drawing, the rooms will move.
Once the rooms are in the correct location, run the Coordinate Drawings and Database command on the drawing to fix any other errors that may have been caused by the drawing not being saved.