Issue with box links in Confluence Roadmap macro

[Deleted user]

 I'm trying to use the Confluence Roadmap macro (https://confluence.atlassian.com/doc/roadmap-planner-macro-704578202.html) to create a roadmap and then link the various boxes populated in the roadmap to associated spaces on Confluence.

It works fine for the first box in any given lane, but if I try to link any subsequent boxes within the same lane, it won't work. I'll be able to look up the names of different spaces in the "link page" feature, but as soon as I select one, it snaps back to the empty "link page" and "create page" links instead of posting a link to the selected space.

Can anyone help with how to resolve this so I can link each box to its own space on Confluence?