Thanks for the detailed report. The error message points towards the limits of the (y) axes, thus the issue does not seem related to the number of plots but to the data on some of them. More specifically with the z-score transformation.
Could it be that z-score was computed over one sample?
(Thus, there basseline_std is zero, and the z-score is undefined)
The “Invalid scale” label appears as it was not possible to find an adequate scale for the data.
Export to Matlab the source maps for the files B and C, and check for NaN or Inf values