Compiled Matlab: DynamicSystem.zpkdata MIMOZERO stops at complex-values -- where interpreted Matlab runs fine

Error message:

??? Error using ==> DynamicSystem.zpkdata at 58 MIMOZERO does not support complex-valued descriptor systems.

Question:

Why does compiled Matlab differ from interpreted in supporting complex values?

Having used 'mcc -mv (program name)' to compile my code, which ran without error messages, the compiled executable now gives me an error upon reaching Matlab's zpkdata function. zpkdata reports that MIMOZERO does not support complex-value descriptor systems. Recompiling and trying similar functions in the signal processing toolbox, such as tfdata, yields the same error. Since signal processing, particularly zpkdata (which handles zeros, poles, and gains in the complex plane) regularly employs complex values, this seems like an odd error to encounter, especially since the interpreted code ran well.

Might the compiler have forgotten to include the signal processing toolbox -- could it be an issue with my LD_LIBRARY_PATH? Is there something that I'm forgetting?