Migrating Build Pipeline error

[4damW]

Here is the error I'm getting
nkd_error.txt

I was looking through the code to see what could be null and noticed that on line 77 TaskGroupMappings and on line 78 VariableGroupMappings are null. Then if the options are set to migrate the variable groups and tasks groups they get whatever data there is assigned to them. And then when the call is made to CreateBuildPipelinesAsync on line 220 TaskGroupMappings and VariableGroupMappings get parsed and are set to null. Why??? I'm confused is it a C# thing that I don't know about? Or is it intentional to set them to null?

I've seen multiple discussion where people are getting the same error as me and It looks like nothing has been done about it. :(