I've tried creating Cloud Profile on Kubernetes Node Launcher with custom podCustomization field via REST API (XML version). When doing so, server responses with HTTP 500 error. Server log reports duplicate-field error, indicating that QuickBuild add this fields without checking if it's already provided in request. Both example XML and cropped server log attached.

Also updating this field in existing Cloud Profile does not work as expected. I've tried similar XML but with added ID of CP to update. CP is updated without error, but podCustomization field is all written in single line. I'm not sure is it parsing correctly later on, but for sure it's no readable.

I've not tried JSON version of REST API, but I expect both of them are facing same issues.