Reordering task position mistaken when drag crossing the branch

see the video above,

example 1: drag the Task #4.1 to the bottom of the Task #2.4, but after i dropped, Task #4.1 became the top of the Task #2.4

example 2: drag the Task #4.1 to the bottom of the Task #2.3, but after i dropped, Task #4.1 became the top of the Task #2.3

I think this is a bug, because I guess the highlight line(yellow line) indicating drop under the bottom of that task, not the top of it, isn’t it?

Any thoughts on this?

Hello Kevin,
We know about that bug, it will be fixed in future updates.
I cannot give you an ETA, but I will notify you.

Hi Ramil,

Thanks for sharing the info with me, But this bugs is really bad, we could not fix it or take any other effective way over this! could you please fix issue ASAP? we are the enterprise users, we need this to be fixed to ship our product. please help.

Hello Kevin,
I sent you the build in the PM.

Thanks Ramil for your quick response, loved your quickly help, it means a lot for us, thanks !!

For everyone else: that bug was fixed in the 6.1.3 version:
https://docs.dhtmlx.com/gantt/whatsnew.html#613