When Noonan touches the tree with his right hand and gets hurt by whatever, he jogs away; in the next scene his left hand is in pain.
Kyra is first shown having her front teeth. In later scenes her front teeth have fallen out. They then reappear in what seems to be too short a time for them to have regrown, indicating that these scenes were shot out of order.
When Sara is murdered she spits blood over her killer's shirt and face; moments later his shirt and face are clean.