Integrate Variable then Plot Data Over Time error

I’m having errors with plotting integrated data over time. My problem is a fluid-structure interaction where I want to calculate the area and flow rate at a plane over time. I can make a plane, integrate to calculate the areas and flow rates. When I go to different time steps the results seem accurate.

When I try to plot this integrated variable over time some of the results are inaccurate (ex. all zero or several orders of magnitude too large). I could click through every time step and export the results individually as the error seems to just be with plotting over time, but it would be more efficient to be able to export all at once.