Unable to use Gantt inside of a modal

I'm integrating React Gantt into my project, it mostly works, however I've noticed the following issue.

Users click Gantt and it opens a modal > inside that it shows the Gantt chart.

When I click on a task - and it opens the sidebar editor, soon as I click Save, or touch the Counter Duration field, it closes the modal.

Is it possible for paid help please?

Hello

Could you please provide your code here so that I can reproduce the issue ?