These are the two main pics where I seen it happen to more than just NPCs, but the main culprits were NPCs specifically.


This was not actually an issue until 3.2 came out.

Specs are as follows

Code:
 Operating System
	Windows 10 Pro 64-bit
CPU
	AMD FX-8120	30 °C
	Zambezi 32nm Technology
RAM
	32.0GB Dual-Channel DDR3 @ 805MHz (9-9-9-24)
Motherboard
	Gigabyte Technology Co., Ltd. GA-990FXA-UD3 (Socket M2)	36 °C
Graphics
	LG ULTRAWIDE (2560x1080@60Hz)
	Acer S231HL (1920x1080@60Hz)
	Acer S231HL (1920x1080@60Hz)
	4096MB ATI AMD Radeon R9 200 Series (ATI)	71 °C
Storage
	1863GB Western Digital WDC WD2003FZEX-00Z4SA0 ATA Device (SATA)	27 °C
	1863GB Seagate ST2000DL003-9VT166 ATA Device (SATA)	27 °C
	3726GB Seagate ST4000DM000-1F2168 ATA Device (SATA)	26 °C
Optical Drives
	No optical disk drives detected
Audio
	Realtek High Definition Audio