Naming an operator with the same name as the process it is in can cause the dataset to stop displaying the process level dataset and only show the operator level dataset for both the operator and process. This seems to only occur in the 4.2 versions.
Process Automation 4.2
Renaming the operator and closing/reopening the process can correct the issue, but if too many changes have been made to the process design, it can be a permanent problem that requires a rebuild of the process design.
This was corrected in PAM 4.3.