Order branch on project with hidden tasks not working

Hi,
I have created this demo, where you can see its not working as it should.
docs.dhtmlx.com/gantt/snippet/d2ec563a

If you try and drag Task #2 down to Project #2 you can’t.
But if you remove Task #3 from the code, you can now drag Task #2 down to Project #2 - But after that, you can’t drag Task #1 down to Project #2 - because it has a hidden Task on it.

Hope it make sense.

Any news on this issue?

Hi,

I can confirm the issue, if you are hiding all task in the branch, you can’t add any new items to the branch.

So how should I fix this issue?

Hello,

The issue has not been fixed.
We will send you a solution of the problem when it will be ready.

Okay, thank you!

Any news on this issue?