In krpano 1.19-pr13 I've found some strange behaviour:
when I've made a flat multires panorama from a geographical map
http://www.kartaspb.ru/s1917/
script loads map tiles in a strange way (clear cache and look at the upper-left segment near the island).
Here is a series of screenshots:
1. First it loads a preview images (ok)
http://www.kartaspb.ru/bug_1.jpg
2. then it loads a strange (incorrect) tile from another part of the map
http://www.kartaspb.ru/bug_2.jpg
3. then it loads correct tile, but with different borders than in step 1
http://www.kartaspb.ru/bug_3.jpg
4. and, finally, everything goes ok
http://www.kartaspb.ru/bug_4.jpg
It looks very strange and unpleasant when loading map at first time and when loading a new segments of map at zoom-in for the first time.
When map is cached it looks like some king of flickering in those tiles on reload.
Some previous version of krpano have no such effect:
http://www.kartaspb.ru/1917/
Hope, it can be fixed, because krpano is a really good product!