PlantUML does not render arrows well in a class diagram (Skinparam linetype ortho mode)

I'm trying to make some complex class diagrams with PlantUML by having ortho layout for the relations between the classes.

Some arrows, especially those which are connected at the bottom of an element does not rendered very well.

If it is important, I use VS Code with jebbs.plantuml extension.

Anybody with the same experience?

Problem looks like to be due to an old version of plantuml. The newest released version can be found through the plantuml main page http://plantuml.com/ on http://plantuml.com/download.

The latest available plantuml.jar beta file: http://beta.plantuml.net/plantuml.jar (at http://beta.plantuml.net/ you might also find other files of the latest beta version)