2 superimposed dashed lines become solid

[GtR]

When 2 or more Connector lines with a dashed pattern are partially
superimposed, this may make part of the combined line look solid. Is it
possible for Visio to show the pattern of the front order line only, so that
the pattern is always consistant?

 

[Philippe C.]

I did it with the operation "trim", but that is probably now what you want.