Arrow Size of Note Changes when the arrow/terminator is moved.
When the arrow is selected using Element Selection, and is moved, the arrow size changes in one terminator in a DGN file.
All dimensions were placed using the same dimension style at the same scale.
The DGN file is 3D, when the file is exported to 2D the arrow matches the same arrow size as the other dimensions in the DGN file.
File > Export > 2D