Plot - dual parameter - not right if have delayed start

[leppott]

Describe the bug Plots in report with 2 parameters not right if have 2 parameters.

To Reproduce Both parameters start at record 1 to n. They don't start with the same x variable.

Expected behavior A clear and concise description of what you expected to happen.

Screenshots If applicable, add screenshots to help explain your problem.

Additional context Converting to ggplot should fix the issue. Issue #83