Hi Guys... Additional information:
Normally when you click on a spot point on a floor plan, you see the "Action Parameters" associated with the hotspot. i.e. the pano that has been associated with the hotspot.
On editing the tour, I got the error message when I tried to build the tour to overwrite the old tour.
The only solution is to delete the map point, and add a new map point.
Obviously a bug and an annoying one.
Can you send us a project file on which his bug appears ?
Such message should appear only when you got a spot without any style associated to it.