MixerV3 module fails ungracefully in Designer GUI

When setting different parameters in MixerV3 module and the number of non-zeros is greater than maxNonZero argument, I don't get any notification that it's failing in the Designer GUI, like I would expect.

Instead, Matlab is throwing the error in the command prompt:

   ERROR: Event handler returned an error.
  Error stored in AWE_INFO.designer.lastComErr. Type:
  rethrow(AWE_INFO.designer.lastComErr)
  to examine the error in detail.
  Summary Message: Mixer_v3_module: number of non zero gain exceeds maxNonZero!\nmaxNonZero can be changed in module arguments tab  File: mixer_v3_module
  Line: 0
Error using comeventcallback (line 24)
Error firing event 'OnPacketReceived' to 'awe_OnPacketReceivedEvent'.

This was kind of confusing for me when working in the Designer GUI as to why things weren't working as expected.