How to toggle Drag and Drop issue when tasks are collapsed

Question

Hey, I have created a support ticket a month ago but did hear anything since then. When the drag and drop feature is allowed and moving around collapsed tasks, the Gantt chart is losing dragged child tasks. You guys can just test it on your demo samples.

Steps to reproduce the issue;

Choose at least 2 tasks with sub-tasks.
Collapse those tasks and make
Drag one of the to before and after another collapsed task.
Expand both of them
You will see they are losing child tasks.

If this will not work repeat it one more and you cannot miss it. It is an obvious issue. I am not sure how to toggle this issue.

Monisha Sivanthilingam · Answer

Hi Cagri, 
  
Greetings from Syncfusion support. 
  
We were able to replicate the issue you reported. We will validate it and provide you with further updates within two business days(February 15, 2022). 
  
We appreciate your patience until then. 
  
Regards, 
Monisha.

Monisha Sivanthilingam · Answer

Hi Cagri, 
 
Yes, the reported issue has been replicated. We have logged a bug report for the issue. You can track the status of the bug from the below feedback link. The fix will be included in our weekly patch release scheduled for 2nd March 2022. We appreciate your patience until then. 
 
Feedback: https://www.syncfusion.com/feedback/32660/children-task-missing-after-performing-drag-and-drop-operation  
 
Regards, 
Premkumar S

Premkumar Sudalaimuthu · Answer

Hi Cagri ,  
  
Thank you for your patience!!!  
  
We are glad to announce that your reported issue “How to toggle Drag and Drop issue when tasks are collapsed” has been fixed in version 19.4.54. Please find the release notes from below link.  
  
Release notes:https://ej2.syncfusion.com/angular/documentation/release-notes/19.4.54/?type=all#gantt  
  
Regards,  
Premkumar S