Sort By Key doesn´t work in a LinksCount loop with multiple confluence links on the Issues

Description
If you apply a Sort By Key in a LinksCount loop to export Issues with multiple confluence links, it will not export it.

How to reproduce

1. Create an Issue and mention it on two Confluence pages ( the issue only happens with more than 1 Confluence link)
   
2. Create a template that iterates with LinksCount and apply SortBy
   Use the following code:

   &{for issues}
   #{for k=LinksCount|sortby=Key}
   Parent: ${Key} Link: ${Links[k].Key}
   #{end}
   &{end}
   

Actual result/Attachments
The export will be empty. If the Sort By Key is removed, the export works correctly.

Expected result
It should be able to export even with more than 1 Confluence pages.

Workaround
At the moment, there´s no workaround unless the Sort By is removed.