Error intepreting input value as an integer using Matlab

There seems to be an issue with how values in the input data object are converted to the appropriate types for use in modules.

The value argument of the 'ssc_data_set_number' function is expected to be a single precision variable regardless of the constraint listed for that input in the module.

For example, setting the data value for the number of collectors as 2 is done as: 
However, when the swh module is called, the following error is received:

It looks as though it hasn't correctly cast the input single precision variable to an integer. 

Any ideas?

cheers