console.js:288 Warning: Each child in a list should have a unique "key" prop.

Check the render method of PageLayout. See https://fb.me/react-warning-keys for more information.
in WithStyles(ForwardRef(Grid)) (created by PageLayout)
in PageLayout (created by ViewTemplateDetails)
in ViewTemplateDetails (created by Context.Consumer)
in Route (created by RenderRoute)
in Switch (created by RenderRoute)
in Suspense (created by RenderRoute)
in RenderRoute (created by App)
in IntlProvider (created by App)
in div (created by MainLayout)
in PagePermissions (created by MainLayout)
in main (created by MainLayout)
in div (created by MainLayout)
in div (created by MainLayout)
in SubscriptionsProvider (created by MainLayout)
in DatadogProvider (created by MainLayout)
in AppInsightsLogger (created by MainLayout)
in MainLayout (created by App)
in Router (created by BrowserRouter)
in BrowserRouter (created by App)
in ForwardRef (created by AuthProvider)
in AuthProvider (created by App)
in StylesProvider (created by ThemeProvider)
in ThemeProvider (created by ThemeProvider)
in ThemeProvider (created by MainProvider)
in SettingsProvider (created by MainProvider)
in MainProvider (created by App)
in App
in Provider

Start by locating the PageLayout render method named in the warning and reproduce the issue on the ViewTemplateDetails route. Trace the list that triggers the warning, then verify the console is clear when the route renders.