Cannot see party members' or other players' AOE effects

Time: Persistent
Frequency: Constant
World name: Goblin
Character name: Galdralag Drottkvaett
NPC name: N/A
Monster name: N/A
Class/Level: Any class/level using AOEs
Party or solo: Both
In-game time: Any time
Area and coordinates: Anywhere
Steps:
1. Cast an AOE such as Shadowflare, Sacred Soil, or Circle of Scorn.
2. View the effect on another PC (it does not display).

This issue is only present on PC game clients. Reproducible in both DirectX 9 and 11 versions.

Connection Specs
- Type of internet connection/provider: Fiber
- Modem maker/model number: Google Fiber Network Box

PC Specs
-=-=-=-=- System Information -=-=-=-=-
OS Name Microsoft Windows 8.1 Pro with Media Center
Version 6.3.9600 Build 9600
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name DARKSTAR
System Manufacturer ASUSTeK COMPUTER INC.
System Model G75VW
System Type x64-based PC
System SKU ASUS-NotebookSKU
Processor Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz, 2301 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. G75VW.222, 11/6/2012
SMBIOS Version 2.7
Embedded Controller Version 255.255
BIOS Mode UEFI
BaseBoard Manufacturer ASUSTeK COMPUTER INC.
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Mobile
Secure Boot State Off
PCR7 Configuration Binding Not Possible
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume2
Locale United States
Hardware Abstraction Layer Version = "6.3.9600.17196"
User Name Darkstar\DARKSTAR\Noel
Time Zone Central Daylight Time
Installed Physical Memory (RAM) 16.0 GB
Total Physical Memory 16.0 GB
Available Physical Memory 8.07 GB
Total Virtual Memory 18.3 GB
Available Virtual Memory 8.32 GB
Page File Space 2.38 GB
Page File C:\pagefile.sys
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualization Enabled in Firmware Yes
Hyper-V - Data Execution Protection Yes

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Laptop Model Name: Republic of Gamers (ROG)
Laptop Model Number: G75VW

Gamepad Manufacturer: Logitech
Gamepad Model Name: Wireless Gamepad
Gamepad Part Number: F710

Browser Information
- Name and version of the browser currently in-use: Chrome 43.0.2357.130 m
- Internet Explorer Version: 11

May be toggled off in the game's graphics config? Forget all the options that are in there, but there are several categories where you can set different levels for self, party, etc.