Unable to delete a task because it was under a parent task earlier

I am trying to delete this task but if fails because it says it is linked with another task.
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I removed TASK-2020-00115 as a parent, but it still shows the same error. I also checked dependant tasks for both tasks, and they are empty:
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I checked the records in the database and there is no parent too.

by the way, any one knows how to attach a file to the post?

@ahmedwk If the parent task is not required, can you try deleting that task too ?

For security reasons that’s not supported.

One option is https://bitly.com/ used say here

Thanks.

I tried that too. It didn’t work. I ended up deleting the tasks from the database itself.

Not the best option but it got the job done.