Change multiple project at same time

I have a problem with deadlock in the server because of project being updated multiple times: like in the image if I try to move the boxed task the gantt try to multiple time to change the project task “Fase 1” and have raise a dead lock on server.

Hello Pedro,
Probably, the issue is related to the Gantt configuration, but 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:
https://snippet.dhtmlx.com/38ee1b370
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.

I Already resolve the problem, the problem doesn’t came from gantt, and code on the server but from a trigger in the table where I save the tasks.
Thanks.