Build fail on child attribute creation in Maya

Describe the bug
When running the graph attached which tries to create child attributes using a parent attribute on a node in Maya, it fails. If you run the same code in Maya, it will execute without issues.

To Reproduce
Open the attached graph and run the build

Expected behavior
I expect it to create a node and add attributes. First parent attribute and then chil attributes

Screenshots
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Desktop (please complete the following information):

• OS: Windows 10
• DCC: Maya 2020.4
• Version: editor v3.10.0 | graph v1.17 | api v0.12.0

attr_error.zip