Unable to set Modified Date while importing issues from CSV

[Milan Chheda [INFOSYSTA]]

I am trying to update issues using import CSV given below:

Issue key,Summary,Progress,Date Modified
IPC-11,Task 1,30,20/Jan/2018 01:00
IPC-11,Task 1,40,20/Feb/2018 01:00
IPC-11,Task 1,50,20/Mar/2018 01:00
IPC-11,Task 1,60,20/Apr/2018 01:00

So Issue with key IPC-11 is supposed to get updated with "Progress" mentioned above. Progress is a field provided by BigPicture. 

After importing, Issue gets updated 4 times and I can see all 4 Progress values too. But when I see them in "History" tab of the "view issue" screen, It shows everything is updated today. So the modified date is not getting captured or set during the import.

Yes, I have mapped "Date Modified" above to the JIRA "Date Modified" field during the import, still it doesn't gets updated.  

[Milan Chheda [INFOSYSTA]]

Mistakenly posted twice, so closing this.

https://community.atlassian.com/t5/Jira-questions/Unable-to-set-Modified-Date-while-importing-issues-from-CSV/qaq-p/866772

Is it possible to delete a posted question?