Not sure how else to reach the dev team, so here goes.
Can you update the 2 lines of code in the WidgetManager to utilize the current domain so that all widgets are playing on the same page nicely. (Singleton classes were not working properly.)
Original:
ctlInfo.load(null, null, null, moduleFactory);
Update:
ctlInfo.load(ApplicationDomain.currentDomain, null, null, moduleFactory);
Just my recommendation.
Thanks,
Joe