Huawei cameras no longer working after update

Hi, I have just updated from 4.0.0.29987 to 4.1.0.31398 and all of our Huawei cameras are no longer working (little red crosses through them and live view no longer works).

Nx Witness Client version 4.1.0.31398 (2b741e73931c).
Built for windows-x64 with msvc.
OpenGL version: 4.3.0 - Build 20.19.15.4835.
OpenGL renderer: Intel(R) HD Graphics 4600.
OpenGL vendor: Intel.
OpenGL max texture size: 16384.
<computername> (computername): v4.1.0.31398

If I click on diagnose on the live view I get this error (post firmware update).

Confirming server availability.
OK

Confirming camera is accessible.
OK

Confirming target camera provides media stream.
FAILED: Camera request "AddVideoSourceConfiguration" failed with error "Fault info. Reason: Conflict when using new settings. Additional: SOAP-ENV:Receiver. Sub info: "http://www.onvif.org/ver10/error":Action. Additional details: The new settings conflicts with other uses of the configuration.. ". Please try to reboot the camera, then restore factory defaults on the web-page. Finally, try to update firmware. If the problem persists, please contact support.

Diagnostics complete

Pre-firmware update error message

Confirming server availability.
OK

Confirming camera is accessible.
FAILED: Camera request "getCapabilities" failed with error "Fault info. Reason: End of file or no input: message transfer interrupted or timed out (10 sec max recv delay) (10 sec max send delay). Additional: SOAP-ENV:Sender. ". Please try to reboot the camera, then restore factory defaults on the web-page. Finally, try to update firmware. If the problem persists, please contact support.

Diagnostics complete

I have rebooted two cameras (all our Huawei cameras are effected), I have reset both (both soft and hard reset) and updated the firmware to the latest version.  The cameras that I have tried this on are IPC6225-VRZ and are running firmware version IPC V200R003C30SPC200 but this is also happening on old firmware and different models.

Any help would be great.