Why do I get an "Initialization commands cannot be evaluated" error upon model update with the Signal Builder block in R2016b?

Using a Signal Builder block in R2016b, I am able to import signals from a MAT-file which stores a Dataset logged after simulation. However, when I update the model (Ctrl+D), I get the following error:

Error in 'signalBuilderEx/Signal Builder': Initialization commands cannot be evaluated.

Caused by:

In an assignment A(:) = B, the number of elements in A and B must be the same.

What is the reason for this error?

Answer 1

[MathWorks Support Team]

This error occurs because the data saved in the Dataset has fixed-point data type. To remove this error in R2016b, please convert the signals to doubles before logging.

The error should not occur in R2017b with the same fixed-point Dataset.