Hey Primitive Pixels Games, thanks for reporting this in!
This could be due to an incompatibility with the VisuStella plugins you have mentioned, however, given VisuStella's policy to obfuscate their plugins and their request that we do not extend compatibility to their suite, we will be unable to resolve this issue without legal risk. As this is more of a business problem than a programming one, please feel free to refund the Shatter Effect plugin until such a time as we can reach an agreement with them. We apologize for any inconvenience caused by this matter.