Why are shadows behaving weirdly in my game?

Help and Feedback Art Design Support
#1

whenever i walk around there’s these weird glitches with shadows on my character, the light parts and accessories have cast shadow off and i cant think of anything else doing this other than head movement. If you have any fixes or info on it i’d appriciate it. thanks

https://gyazo.com/593d28fa51febc25ff0c3dc60e74aab6
https://gyazo.com/d5a6db13f78476c367d3c31d2a9ba2e6

#2

there’s also some weird stuff happening with the floor, it flashes and from a distance it looks all low quality. i have the render fidelity set to percise

https://gyazo.com/60aa666334cb70067694a4fdef36af2d

im not sure if i can do anything about this though,i just wanted to add on