This run is supposed to show current underdrive. It actually looks fairly good with a little positive ohmic in the core.
Try reducing the power to 1.4MW and resubmitting this with the changes.
For more information about the run see the input namelist.
The image below plots the total current vs time.
Legend:
Total Current: White
Lower Hybrid: Red
Ohmic Current: Green
Bootstrap Current: Blue
The figure below shows the actual power spectrum from the TRANSP output.