Bluetooth Connection causes Kernel Panic / System crashes when device is paired

[xoreminder]

Disabling Port Limits also didn't do the trick - system crashed again after connecting my Logitech trackpad

 

[UtterDisbelief]

Here's my Bluetooth information from System Report:

Apple Bluetooth Software Version: 6.0.14d3
Hardware, Features and Settings:
Name: iMac Pro
Address: 00-19-86-00-1A-CE
Bluetooth Low Energy Supported: Yes
Handoff Supported: No
Instant Hot Spot Supported: No
Manufacturer: Broadcom
Transport: USB
Chipset: 20702A3
Firmware Version: v14 c5556
Bluetooth Power: On
Discoverable: Off
Connectable: Yes
Auto Seek Pointing: On
Remote wake: On
Vendor ID: 0x0A5C
Product ID: 0x21EC
HCI Version: 4.0 (0x6)
HCI Revision: 0x15B4
LMP Version: 4.0 (0x6)
LMP Subversion: 0x220E
Device Type (Major): Computer
Device Type (Complete): Mac Desktop
Composite Class Of Device: 0x380104
Device Class (Major): 0x01
Device Class (Minor): 0x01
Service Class: 0x1C0
Auto Seek Keyboard: On

Here's from USB:

BCM20702A0:

Product ID: 0x21ec
Vendor ID: 0x0a5c (Broadcom Corp.)
Version: 1.12
Serial Number: 001986001ACE
Speed: Up to 12Mb/sec
Manufacturer: Broadcom Corp
Location ID: 0x1d160000 / 5
Current Available (mA): 500
Current Required (mA): 0
Extra Operating Current (mA): 0

Hi there.

Thanks, but what I meant was - what physically is your Bluetooth adapter? Is is a USB dongle? If so what make? Or is it a PCI-e wireless/bluetooth combo card with an internal USB lead? If so, what brand?

 

[xoreminder]

Oh, its a USB dongle. Tiny.

Dual Mode Bluetooth 4.0 Adapter Mini Dongle High Speed USB 2.0 Stick BCM20702