Creating a vertical dimension with horizontal text creates a stub when the text is placed outside of the extension lines. The default orientation for the stub is to point away from the geometry.
The direction of the stub can be changed using the 'Stub Orientation' option within the dimension 'Settings - Line/Arrow - Arrow Line - Stub - Orientation'.
If the dimension is subsequently repositioned by select and drag, the stub will revert to the default orientation.
SolutionTo preserve the stub orientation, when dynamically repositioning the dimension, hold down the 'Ctrl' key before selecting the dimension.
Notes