azureml sdk V2 component pipeline "optional Input <variable_name> must be placed in nested argument: $[[]]."

• Package Name: azure-ai-ml
• Package Version: 0.1.0b6
• Operating System: ubuntu
• Python Version: 3.8.12

Describe the bug A component I’m building has an optional argument, it seems like over night that all of our pipelines that were making use of optional arguments fail to launch from our launch scripts resulting in an error that reads "optional Input <variable_name> must be placed in nested argument: $[[]]." Removing the optional argument seems to allow the pipeline to launch as expected

I’m currently using mldesigner version 0.1.0b4, I have tried upgrading to 0.1.0b5 and that resulted in a different crash when launching the pipeline due to an import error from the azure-ai-ml package EDIT: To get mldesigner 0.1.0b5 to work I installed the latest commit on the azure-ai-ml 0.1.0b7 branch and that fixed the crash I originally had with mldesigner 0.1.0b5, but gives me the same optional argument crashed in the title of this issue.

[palmerss]

awesome, @0mza987 , I just tested this and it works, tyvm for the rapid response, looking forward to 0.1.0b6

[luigiw]

Thx @cloga and @palmerss for the quick reply and turn around!