Patching Xcode Cloud Workflows no longer working

Hello.
I use the App Store Connect API with my XCode Cloud setup to update a Workflow description. Specifically PATCH https://api.appstoreconnect.apple.com/v1/ciWorkflows/{id}. A few days ago this API call stopped working, the API gives a 409 error and reports "You must provide a value for the attribute 'startConditions' with this request". I can't find anything about this attribute in the documentation if there has been a change. I tried adding it, but the API reports that this attribute doesn't exist. Has anyone else found this or has any suggestions? Thanks, David.

Patching Xcode Cloud Workflows no longer working
 
 
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