Orangutans visit the tree almost daily, but with range problems in the dense canopy, the cameras don't always fire. And the orangutans, seeming to spot the cameras, take circuitous routes to avoid passing near them.Dec 7, 2016
nationalgeographic.com
Nice Shot! An Orangutan's Hairy Climb - National Geographic
Article has a pay wall unfortunately. I've read that one idea is that the orangutans associate the cameras with humans and want nothing to do with them.
I speculate it's similar with sasquatch. The trail cams stick out as unnatural in their world and they associate the cams with us. Humans made it, humans put it there and the humans might still be around. Sasquatch avoids camera and heads to territory with less human activity.