Hello Daniel,
updating hotspots pro 4.0.5 to hotspots pro 4.0.6 markers are no more automatically show on map as before. Although adresses and details are no more shown when clicking a marker on map. I my case changing to show all markers (361 markers), by deselecting some categories to show just 238 markers, temporarily solved my problem. I hope this problem gets fixed very soon. Otherwise please provide a link for a download to switch back to version 4.0.5.
With regards Sascha