Issue - Gantt chart by maq software percentage wrong when use hierarchy

Hi community,

I have an issue with Gantt chart by maq software.

Context : 

I use 2 levels of hierarchy and in data label I want to show the % of progress.

Issue:

It's works at level 2 but the level 1 is wrong, it takes the % of the first level 2 below the level1

Do you have an idea? Thank you for your help.

Benny