In Level Manager the level override symbology are configured for color, weights and styles. This level override symbology are not printed correctly using an InterPlot Design script.
Set in the InterPlot configuration file iplotsrv.cfg the following Variable to false
IPLOTSRV_DESIGN_SCRIPT_SYMBOLOGY_AS_STORED = false
Description of the Variable:
# (For use with MicroStation V8 only)
# IPLOTSRV_DESIGN_SCRIPT_SYMBOLOGY_AS_STORED determines whether or not
# level override symbology is taken into account in a design script. When
# set to "true", level override symbology is not taken into account when
# querying the element's color, weight, or style. In this mode, the values
# used in 'if" statements, such as "if (color .eq. 2)", come from the
# header of the element and are never dependent on the view being printed.
# This is the default behavior. When this variable is set to "false",
# and level override symbology is in use, the design script symbology is
# taken from the level overrides.