Plugins left on the "Developer" default crash running games

Hi ColdIronPoz,

The two files that were changed to correct this are SNewPluginWizard.cpp and SNewPluginWizard.h. If you built the Engine from source code, you can make the changes to these files that were made in the commit that you found and rebuild the Engine. It is unlikely that we will be including this fix in any potential update prior to 4.15 being released.