Predecessors not working as expected


When I am using predecessors and I try to change the end date, duration or predecessors, the task is re-calculated and changes to a date different from expected


Hello Marcio,
I suppose it is related to auto-scheduling. However, it is hard to suggest what might be wrong as I don’t see your code.
Please, add your configuration in the following snippet and make sure that the issue is reproduced there:
Then, click on the Share button and send me the link.
Or send me a ready demo with all the necessary Javascript and CSS files so that I can reproduce the issue locally.