Create issues and issue links at the same time from json

[LeCobb]

Hello,

I try to create 2 issues and an issue link between the two.

From JIRA it's working well, Issue1 blocks Issue2 and Issue2 is blocked by Issue1 automatically :

But when i try to do it from json :

I get blocks link for both issues :

From Issue1

From Issue2

I also tried to create the is blocked by link myself, but it provides the same result as clones.

I get is blocked by link for both issues.

How can i do it ?

Thanks in advance for any help.