if I have 8 cameras, 5 are always in view while 3 are only sometimes in view

will ipi know to use them as helpers and ignore when they can't see some of my body parts? or it will cause problems?

Our tracking algorithm expects the body to be fully visible in all cameras. Thus better to avoid situations where an actor goes out of view of some cameras, even partially. Try to figure out different placement for cameras to keep an actor visible.