2018.2 definitely appears to have modified the way requirejs works on netsuite's end. Code that was working friday blew up yesterday when using jquery and custom amd modules w/ "Mismatched anonymous define() module" errors... I wound up passing a reference to jquery to the libraries from the calling script and adding some scripts via <script> tags on my suitelet which appears to have fixed it. The only thing that changed was the netsuite version