As Sonic wakes up and discovers that his hi-tops are missing, it's morning outside as you look at the window, but when he screams, it cuts to a shot showing the exterior of the hotel and it's dark outside.
When Sonnet sneaks into Sonic's room during the night, the hole that was cut in the door is not present. The hi-tops were stolen before Sonet came into Sonic's room during the night.
When Harry is cutting the hole into the door to Sonic's hotel room, the doorknob is on right side when shown from the hallway. The doorknob is supposed to be on the left given there position from the hotel room side.
Sonnet steals the red bookmark from Sonics room. In one shot of her holding the bookmark, it's blue and not red.