Hi again,
another feature that I'm missing since we use Odoo v15 is the accumulation of start date, end date, duration and the time bar of the sub tasks.
Now these fields are not automatically accumulated anymore but can/have to be filled manually and act independently.
Odoo Version: 15
Reproducible: Yes
Reproducible on odoo-gantt.bryntum.com: yes
Bryntum App Version: 15.0.1.3.1