When defining the CAD file location preferences in Smart Instrumentation, the following restrictions apply to MicroStation:
MicroStation paths must not have spaces.
The CAD function folder must not exceed fifty two characters.
A CAD function folder path that is longer than fifty two characters or any MicroStation
path that has spaces prevents MicroStation from generating or displaying drawings
or cells from Smart Instrumentation. For example, the default CAD function folder path
C:\Program Files (x86)\SmartPlant\Instrumentation\CAD\CADFunc
has a space and is longer than allowed. In this case, you need to copy the CADFunc folder and its content to another location, for example, C:\CAD\CADFunc, and also, reinstall MicroStation in a path that does not have spaces.