Playing little bit around and I think this has nothing to do with Pan, but it looks like this is a resize action from rectangle selection. We are using the same icon for resize rectangle selection and Pan. We should have different icons for each of the actions.
It looks like "resize" selection on small images is not sensitive at all - large area to select from. This mouse sensitivity should be reduced.
Playing little bit around and I think this has nothing to do with Pan, but it looks like this is a resize action from rectangle selection. We are using the same icon for resize rectangle selection and Pan. We should have different icons for each of the actions.
It looks like "resize" selection on small images is not sensitive at all - large area to select from. This mouse sensitivity should be reduced.