There is a Out of the box attribute i.e. Project >Status Reporting with a read only property i.e. API Attribute Id with value of statusReporting. The user from Classic UI is able to mark the property as editable and mistakenly changed value of API Attribute Id and post which "Status Reporting" fails to show the status.
Recreation Steps
ERRORODF-0249: API Alias for custom attribute must begin with a lower case letter and an underscore (for ex. 'p_')
Expected Results: The read-only API Attribute Id should never be made editable
Actual Results: End user is able to make changes to read-only API Attribute Id of system default attributes resulted in data corruption.
Release : 16.0.3 or higher
Component: Clarity Project Management
This is a known issue and tracked via DE70348 and is in review by engineering.