Is there a function that I could call to rerender Flexmonster manually?

I'm trying to implement Flexmonster in Angular 1.5.8 inside Gridster.js widgets. It works perfectly until I resize the widget, at which point Flexmonster won't rerender itself to fit the new size of the widget. Is there a function that I could call to rerender Flexmonster manually? If I change the data inside Flexmonster, it rerenders and fills the entire new size of the surrounding widget. I can send a callback function to Gridster to fire every time after the user has resized it, so this would be the place to call such a function. Any other workaround is also welcome if you have ever run into a similiar case.