When I try to load a new database (WBD file) for Board 1, I get one of the following errors: "Board Failed Initialization" or "WinRT not loaded for Dev 1".

The specific errors are as follows:

Board Failed Initialization
Board Number: 2
Error Status: 50
OR
WinRT not loaded for Dev 1
Error Code = 2

This problem is usually encountered when an existing WBD file is open and you attempt to create a new WBD file either by clicking the New toolbar button or selecting New from the File menu.

BusTools/ARINC attempts to open the second WBD file for the next device (Board 2), because opening concurrent WBD files for the same device is not supported. If you close the first WBD file, you can then create a new file for your existing device, referenced as Board 1.