When I try to use diagram component, it seemed cluttered after drawing a few diagrams. Link to the diagrams cannot be drawn easily and even if we manages to draw the link, it breaks when after adding another link.
Please look into the issue.
Snippet in question can be accessed via https://snippet.dhtmlx.com/xshe9ut7?_ga=2.229802719.294167136.1631889981-1549123795.1624533597&mode=wide
Could you please, provide an actual snippet, as the linked one - is a default initialization snippet.
The mentioned issue in the linked topic was already fixed. You can check it by yourself in the snippet from the original post.