Book Simulation - Report graph has flatlined in 2023

The report generator seems to have flatlined in 2023 for this book sim:
https://www.portfolio123.com/port_summary.jsp?portid=1701840

I see the same phenomenon with the underlying strategy.
https://www.portfolio123.com/port_summary.jsp?portid=1594696

The summary graph shows it is not a flatline.