Bio II being inexplicably interrupted

Time: June 8th, Approximately 10:30 PM EST
Frequency: Sometimes
World name: Diabolos
Character name: Itseotle Irracido
NPC name:
Monster name: Dalamud Spawn
Class/Level: Scholar Lv.50
Party or solo: Full-Party
In-game time: Unknown
Area and coordinates: The Second Coil of Bahamut Turn 4
Steps:
1. Was in battle and when the Dalamud Spawn enemies would appear, I would sometimes not be able to cast the spell "Bio II" on them. The spell would begin casting, then immediately interrupt its cast for no reason. I was not being attacked, was in range of the target, facing the target, had sufficient MP, and was not under any detrimental status effects. The spell interruption made the same animation as a spell that was interrupted because the target went out of sight. Spamming the spell Bio II from different angles and ranges would not let it cast, even from "melee range". Even using the ability "Swiftcast" in conjunction with Bio II would still cause it to self interrupt. This would not happen every time the battle was attempted, but if the bug was present it would persist until the battle was reset.

Connection Specs
- Type of internet connection/provider: Cox Communications, Cable Internet 5Mbit/s
- Modem maker/model number: Unknown

PC Specs
-=-=-=-=- System Information -=-=-=-=-


-=-=-=-=-=-=- FFXIV Information -=-=-=-=-=-=-

MyDocument D:\Chris's Documents\Documents
FINAL FANTASY XIV - A Realm Reborn C:\Program Files (x86)\SquareEnix
FINAL FANTASY XIV - A Realm Reborn Language 1 Region 2
ProxyEnable 0
ProxyServer unspecified
ProxyOverride *.local


-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

SYSTEM_OS Windows 8.1 Pro 64-bit (6.2, Build 9200) (9600.winblue_r9.150322-1500)
SYSTEM_CPU Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz (4 CPUs), ~3.4GHz
SYSTEM_CORE_NUM SYSTEM_CORE_LOGIC 4 SYSTEM_CORE_PHYSICS 4
SYSTEM_BIOS BIOS Date: 03/21/14 09:37:11 Ver: 14.02
SYSTEM_LANGUAGE English (Regional Setting: English)
SYSTEM_MEMORY 16328.480MB
SYSTEM_VIRTUAL_MEMORY 2047.875MB
SYSTEM_PAGE_FILE 16328.480MB
SYSTEM_STORAGE C:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 232.884GB SYSTEM_FREEDISC_SPACE 187.122GB
SYSTEM_STORAGE D:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 931.511GB SYSTEM_FREEDISC_SPACE 868.105GB
SYSTEM_STORAGE E:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 118.898GB SYSTEM_FREEDISC_SPACE 52.473GB
SYSTEM_DIRECTX_VERSION DirectX 11
SYSTEM_GRAPHICS NVIDIA GeForce GTX 970
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP GeForce GTX 970
SYSTEM_GRAPHICS_MAKER NVIDIA
SYSTEM_GRAPHICS_VRAM 3072.000 MB
SYSTEM_GRAPHICS_SHARED_VRAM 1023.938 MB
SYSTEM_GRAPHICS_DAC Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE 1920 x 1080 (32 bit) (60Hz)
SYSTEM_GRAPHICS_DRIVER nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
SYSTEM_GRAPHICS_DRIVER_VERSION 9.18.0013.4752
SYSTEM_GRAPHICS_DRIVER_DATE 2/20/2015 3:18:32 AM
SYSTEM_GRAPHICS_DRIVER_LANGUAGE English
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_SOUND GameCom 780 (Plantronics GameCom 780)
SYSTEM_SOUND_DEVICE_ID {7B1FD788-FB67-4A97-A82A-3FFCD78F0F59}
SYSTEM_SOUND_DEVICE_NAME PLTGC.sys
SYSTEM_SOUND_DRIVER_VERSION 8.00.0008.2163
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 10/8/2013 4:43:42 PM
SYSTEM_SOUND Virtual Cable (Out) (VB-Audio Virtual Cable)
SYSTEM_SOUND_DEVICE_ID {081368B6-81DB-4652-987B-ACEB0D134D20}
SYSTEM_SOUND_DEVICE_NAME vbaudio_cable64_win7.sys
SYSTEM_SOUND_DRIVER_VERSION 6.01.7600.16385
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 6/8/2015 7:05:31 AM
SYSTEM_SOUND Digital Audio (S/PDIF) (2- High Definition Audio Device)
SYSTEM_SOUND_DEVICE_ID {082D1B44-53F4-41E5-BE4A-0BEC99ACB966}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.03.9600.16384
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 8/22/2013 6:38:21 AM
SYSTEM_SOUND Speakers (2- High Definition Audio Device)
SYSTEM_SOUND_DEVICE_ID {DB5510AF-A680-4F45-9112-907FA43D48E2}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.03.9600.16384
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 8/22/2013 6:38:21 AM
SYSTEM_INPUT {6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 3 SYSTEM_GAMEPAD_BUTTON 8 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 128 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {B49F7400-0DA2-11E5-8002444553540000}
SYSTEM_INPUT_NAME Splashtop Virtual Hid
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {B49F9B10-0DA2-11E5-8004444553540000}
SYSTEM_INPUT_NAME Corsair K95 RGB Gaming Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 4096 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {B49FC220-0DA2-11E5-8006444553540000}
SYSTEM_INPUT_NAME Plantronics GameCom 780
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 1 SYSTEM_GAMEPAD_BUTTON 5 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {B4A01040-0DA2-11E5-800F444553540000}
SYSTEM_INPUT_NAME Corsair composite virtual input device
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 1024 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {B49FE930-0DA2-11E5-800A444553540000}
SYSTEM_INPUT_NAME Splashtop Virtual Hid
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {B49FE930-0DA2-11E5-800B444553540000}
SYSTEM_INPUT_NAME Corsair K95 RGB Gaming Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {B49FE930-0DA2-11E5-800C444553540000}
SYSTEM_INPUT_NAME Corsair K95 RGB Gaming Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {B49FE930-0DA2-11E5-800E444553540000}
SYSTEM_INPUT_NAME Splashtop Virtual Hid
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0


-=-=-=-=-=-=- Application Information -=-=-=-=-=-=-

HID
boot
Welcome to the "In-Game Bugs" Forum! (READ THIS FIRST) - Google Chrome
FINAL FANTASY XIV: A Realm Reborn
Windows Media Player


-=-=-=-=-=-=- Install Information -=-=-=-=-=-=-

Intel® Watchdog Timer Driver (Intel® WDT)
Adobe Flash Player 17 NPAPI
MSI Afterburner 4.1.1
Battle.net
Diablo III
Google Chrome
Heroes of the Storm
Malwarebytes Anti-Malware version 2.1.6.1022
Overwolf
Rainmeter
Splashtop Software Updater
StarCraft II
Steam
Heaven Benchmark version 4.0
VLC media player
Intel Extreme Tuning Utility
Skype™ 7.5
FINAL FANTASY XIV - A Realm Reborn
Microsoft SQL Server Compact 3.5 SP2 ENU
Intel® Watchdog Timer Driver (Intel® WDT)
Google Update Helper
Microsoft Server Speech Text to Speech Voice (en-CA, Heather)
Microsoft Server Speech Text to Speech Voice (ca-ES, Herena)
Microsoft Server Speech Text to Speech Voice (en-US, Helen)
Realtek Ethernet Controller Driver
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161
Microsoft Server Speech Text to Speech Voice (en-GB, Hazel)
Microsoft Server Speech Text to Speech Voice (en-IN, Heera)
Splashtop Streamer
Corsair Utility Engine
Intel Extreme Tuning Utility
Microsoft Server Speech Text to Speech Voice (en-AU, Hayley)
Microsoft Server Speech Text to Speech Voice (en-US, ZiraPro)
SlimDX Redistributable for .NET 4.0 (March 2011)
Microsoft Server Speech Text to Speech Voice (ko-KR, Heami)
Asmedia ASM104x USB 3.0 Host Controller Driver
Plantronics® GameCom 780/788 Software for Dolby® Headphone
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219


-=-=-=-=-=-=- Proccess Information -=-=-=-=-=-=-

C:\Program Files (x86)\Google\Chrome\Application\chrome.exe 0000193C
C:\Program Files (x86)\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\boot\ffxivsysinfo.exe 0000129C
C:\Program Files (x86)\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\game\ffxiv.exe 00001654
C:\Program Files (x86)\Windows Media Player\wmplayer.exe 00001518
C:\Program Files\Intel\Intel(R) Rapid Storage Technology\IAStorIcon.exe 00001708
C:\Program Files\Plantronics\GameCom 780 & 788\GameCom780.exe 00000AF8
D:\Program Files (x86)\Corsair Utility Engine\CorsairHID.exe 000012FC

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

Laptop Model Name:
Laptop Model Number:

Gamepad Manufacturer:
Gamepad Model Name:
Gamepad Part Number:

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

Did you get a warning message? I can't recall the message I got but I know that the one and only time I did Coil I had one person who couldn't have any protective/healing spells cast on them. It was as if they were behind a barrier in a boss fight and I was outside.

I think we solved it by me completely running out of the sight, not just line-of-sight, of the other players and when I was back it was all good.

In short, sometimes in Coil things can become unresponsive to any magic abilities for no apparent reason.