User is unable to Delete a Task in the Clarity PPM New User Experience (UX) when there is a custom attachment attribute associated to the Task Properties. If you try to delete the task from the project in the New UX, you receive the below error:
API-1004: Invalid resource identifier 5053009
This issue is caused by DE29155/CLRT-81244
This issue is fixed in Clarity PPM 15.2.