RealHW: Assertion failed: !EHCI_IS_LOW_SPEED(PortStatus)

Tested on:

• Build 20181209-0.4.11-dev-948-gde7c959 (hdaudbus.sys is deleted after 1st setup stage)
• Build 20181227-0.4.12-dev-198-gc348333 (hdaudbus.sys is deleted after 1st setup stage)

Detailed connected hardware:
Processor - AMD Athlon II x3 450.
RAM - DDR2 800MHz 2x2GB.
Motherboard - Microstar K9N6PGM2-V2 MS-7309 Ver:2.3.
Default BIOS settings except of disabled onboard audio & parallel port.
Ded. Graphics Card - nVidia GeForce GTX 750Ti OEM 2GB.
Hard Drive - SATA II WD16 00JS-56MHB1 160GB.
[Volume 1: 160GB FAT32]
Optical Drive - SATA II Plextor PX-L890SA.
Television Card - Medion TV Tuner SAA7134 CreatixCTX918-V2.
Ded. Sound Card - Asus Xonar DGX.

Additionally:
USB Mouse connected.
PS/2 Keyboard connected.

During first boot kernel debugger stops at

(drivers/usb/usbehci/hardware.cpp:1418) Device disconnected on port 0

(sdk/lib/drivers/libusb/hub_controller.cpp:334) [USBEHCI] Change state on port 0

(drivers/usb/usbehci/hardware.cpp:1104) Waiting 100 milliseconds for port to stabilize after connection

(drivers/storage/scsiport/scsiport.c:2894)   unknown ioctl code: 0x24054

(drivers/usb/usbhub/fdo.c:273) Device connected from port 1

*** Assertion failed: !EHCI_IS_LOW_SPEED(PortStatus)

***   Source File: /srv/buildbot/Build_GCCLin_x86/build/drivers/usb/usbehci/hardware.cpp, line 905

on both builds
This error started to appear after I changed back panel USB connector that I use for mice.