Project for the Web Roadmap Visualisation

We have just start to use this solution and noticing that on some project added to the roadmap that the first task selected to be displayed is not shown in the designed order, even though the entered dates and order of tasks should have it displayed at the top of the added roadmap entry. This makes for a messy visualisation of the created roadmap entry and reduces its value.

We have recreated entries in the roadmap, and even the roadmap itself and still have the experience.

Keen to understand if anyone else is having the same experience and whether this is a known issue with the solution?