This is a new type of error thread where, for a specific feature of Photosynth, (in this case Overhead View), we list all examples of the specific error that we know of. This will help to organise bug reports.
For the most part this is only about reporting which synths have this error. Let Photosynth team members list reasons why this has happened if they want to, but try to keep the topic tidy, not going into long personal speculations of why it isn't working.
Please feel free to adopt my format for other features where you think there may be a fair number of the same sort of error, even going as far as copying and pasting this introduction for other features' topics.
Please stay on topic. This topic is *only* about synths where entering overhead view does not look straight down at the top of objects in the pointcloud.