Can't change parent for Sub-task, getting error 500

[Julia Petrova]

I've imported some Sub-Tasks to Jira via CSV file. The idea was to connect Sub-Tasks to existed Stories. Some Sub-Tasks were connected to Story as expected but only one Sub-Task per Story. Rest Sub-tasks were imported to Jira as well but with no parent. Unfortunately I can't change 'blank' Parent for such Sub-tasks to existed Parent issue. I'm getting error 500 every time I do that.

Any ideas how to solve that?

[Zaldy Parian]

Hi Julia,

Were you able to solve this issue? I'm also getting the error 500 (skull) when I try to change the parent of a subtask.

Cheers,

Zaldy