MIDI crash - DEP Violation at: 0x0000000000000000

[charlzm]

Let's get system specs out of the way first:


SiSoftware Sandra
ID
Host Name : HAL9000
Workgroup : WORKGROUP

Computer
Chassis : Desktop
Mainboard : ASRock X58 Extreme
BIOS : AMI (OEM) P2.90 04/25/2011
Total Memory : 24GB DIMM DDR3

Processors
Processor : Intel(R) Core(TM) i7 CPU 960 @ 3.20GHz (4C 8T 3.2GHz/3.46GHz, 2.13GHz IMC, 4x 256kB L2, 8MB L3)
Socket/Slot : FC LGA1366

Chipset
Memory Controller : ASRock X58 I/O Hub 2x 2.4GHz (4.79GHz)
Memory Controller : ASRock Core Desktop (Bloomfield) UnCore 2x 2.4GHz (4.79GHz), 3x 8GB DIMM DDR3 1GHz 192-bit

Graphics Processor
CUDA GP Processor : NVIDIA GeForce GTX 980 Ti (2816SP 22C 999MHz/1.32GHz, 3MB L2, 6GB 6.61GHz/7GHz 384-bit)
OpenCL GP Processor : NVIDIA GeForce GTX 980 Ti (2816SP 22C 999MHz/1.32GHz, 352kB L2, 6GB 6.61GHz/7GHz 384-bit)
Compute Shader Processor : NVIDIA GeForce GTX 980 Ti (3072SP 22C 999MHz/1.32GHz, 3MB L2, 5.9GB 6.61GHz/7GHz 384-bit)
OpenGL Processor : GeForce GTX 980 Ti/PCIe/SSE2 (6GB)

Storage Devices
WDC WD1001FALS-00J7B0 (1TB, SATA300, 3.5", 7200rpm, 32MB Cache) : 932GB (E:)
WDC WD1002FAEX-00Y9A0 (1TB, SATA300, 3.5", 7200rpm) : 932GB (F:)
Samsung SSD 750 EVO 500GB (500.1GB, SATA300/600, 2.5", SSD, OPAL) : 466GB (C:) (Z:)
WDC WD30EFRX-68EUZN0 (3TB, SATA300/600, 3.5", 5400rpm) : 3TB (G:)
PIONEER BD-RW BDR-206 (SATA150, BD-RE, DVD+-RW, CD-RW, 64kB Cache) : N/A (D:)

Operating System
Windows System : Microsoft Windows 8.1 Professional 6.03.9600
Platform Compliance : x64

Pro Tools 12.4.0.294

I am trying to configure an M-Audio Keystation 49e for use with Pro Tools. It is connected via USB 2 cable. I have downloaded and installed the latest driver for this keyboard.

When I first get into PT, the following message appears:

"Pro Tools is unable to communicate with M-Audio Keyboard. Power-cycle M-Audio Keyboard and check it connections. Note, if M-Audio Keyboard is not in use, update the Peripherals dialog to prevent further warnings."

It is worth noting that the keyboard is connected, powered on and can be used in standalone software outside of Pro Tools: in this case, BFD3.
Device Manager reports all is well and the keyboard is properly identified and working.

Windows

I click "OK" to close the dialog.

I open SETUP > MIDI > MIDI INPUT DEVICES and USB Keystation 49e IN appears and has a check.

I open SETUP > PERIPHERALS > MIDI CONTROLLERS and there under #1 is
TYPE: "M-Audio Keybrd"
RECEIVE FROM: "USBKysttn49In"
SEND TO: "USBKysttn49Ot"

I change the SEND TO field to "BFD3 MIDI In 1" (since that is how I want to use it).

When I click OK, the following error appears:

"Access violation occurred, thread cause a DEP Violation at: 0x0000000000000000" and Pro Tools crashes.

I tried to attach the latest crash log but this site does not allow the extension.

Restarting Pro Tools and going back through the same process - any attempt to change SETUP > PERIPHERALS > MIDI CONTROLLERS results in the same error and crash.

Occasionally, I will get a bonus Windows error box:
"Microsoft Visual C++ Runtime Library
Runtime Error!
Program: C:\Program Files\Avid\Pro Tools\ProTools.exe
R6025 - pure virtual function call"

I trashed the contents of my USERS > APPDATA > ROAMING > AVID > PROTOOLS folder and restarted the system. No change.
I have also tried this with the Keystation disconnected from the system and with ti connected via MIDI cable through my interface: it makes no difference.

So... I have used this same M-Audio keyboard for years in earlier versions of Pro Tools under Windows XP and Windows 7. What can I do to get it properly configured?