Dependencies between tasks of different projects

I usually have in my organization both internal and external projects. Many tasks of these projects are dependent from each others and I create the dependencies in Asana. No problem until here.
But when I use the Timeline and I change due dates, it does not change the dates in the dependent task of the other project, only in the same project.
Has anybody a clue how to manage in Asana to change due dates automatically when “Prevent depending conflict switch is activated”?
Thank you for you help.

Hi @Julen_Arzelus_IGARLE, thanks for reaching out.

This is the criteria for auto-shifting dependencies: Creating task dependencies | Product guide • Asana Product Guide

Are your tasks meeting these criteria, specifically does the date change of the preceding task overlap with the dependent task?