Review the critical error message on tile overlap
Review the critical error message which indicates that the tile does not overlap with the reference shape even though they overlap well. Rather, it should be indicated as a warning that the tile will not be analyzed due to the presence of another tile already present in the same area. It would be nice to name the tiles in question and explain the tile priority rule (iota² gives priority to the tiles in the top left) and the pointlessness of such an overlap.