I see a solid line and a line jump curve (both on the same line) when the line is perpendicular. I show it from a Value element to a flow line (I have not tested with other situations). The behavior doesn't happen when the line is not perpendicular to the line being "jumped".
Archi 4.0.3
macOS Sierra 10.12.6
See images attached.
Is this happening only on connections that connect to other connections? What if the connections in your example went to boxes?
Issue opened - https://github.com/archimatetool/archi/issues/311
Seems to work fine with connections to element rather than line.