i found that i too had a tough time positioning one of my totems, and after five minutes i gave up and tried another one (the wooden one) and it worked on the first try.

based on my experience above, one possibility is that the image of the first totem i tried (and you are trying as well) may not be perfectly centered in the png file, but i could be 100% wrong. have you tried dropping it off center? if you find a spot that works, perhaps report your findings (such as, "the blue/gold totem works best if dropped slightly above and to the right of the center.) i would try dropping it in a 2x2 cm square around the center, and if I am right about alignment being the problem (which I may be wrong about), one of those spots will work.