Oracle AI Agent Studio isnt working -26D

Hi team,

AI Agent studio functionalities are not working and is throwing error.

When I try to access workflow agents or resources or any functionalities in AI Agent Studio am getting the below error;

Failed to fetch workflow (400): {"title":"deploymentIdentifier in $filter is not a valid field.","traceId":"00000000000000006328e931f056aa57"}

It was working fine till last week and from this Monday all of a sudden, it throws the above error.

Raised SR but Oracle replied back saying they don't support demo instance.

Request if anyone have faced this issue or if anyone could help in providing guidance in trouble shooting this issue and the fix.