Hi. I'm trying to use the Roadmap Planner in Confluence (cloud), and it seems to have issues rendering markers properly. When I edit the roadmap, it looks OK:

Note that there are four separate markers.
However, when the page is rendered, both on the preview and live, I get:

Note that the first two markers are smashed together, and the last two have migrated back by a week (effectively, all three latter markers are moved by a week).
P.S. This happens on both Chrome and Edge, so doesn't appear to be browser-related.