Journeys Reopened task expires in one day even with the due days of 25 days

Summary:

We reopened Journeys expired tasks via HDL as manually it is not feasible to do, due to the large volume. We were able to successfully reopen them but next day they are getting auto expired even with the due date set as after 25 days. Please advise how we can solve this issue ?

And, "When does the task expire?’ is already set to ‘After due date’.

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