Ion-range not working within Vue's keep-alive component

I have an ion-range component within Vue’s keep-alive component so that when I change views via Vue Router I don’t lose the range setting. I can drag the slider’s handle upon the component’s first load but after leaving that view and then returning to it, the slider value is retained (thanks to keep-alive) but the handle no longer slides. Any idea why not?

I’m using Vue Router 3.1.5, Vue 2.6.10, and @ionic/vue 0.0.4