diff --git a/packages/ds-material/src/widgetsBinding.tsx b/packages/ds-material/src/widgetsBinding.tsx
index b9522b54..cb55e01b 100644
--- a/packages/ds-material/src/widgetsBinding.tsx
+++ b/packages/ds-material/src/widgetsBinding.tsx
@@ -14,18 +14,15 @@ import { pluginStack } from './pluginStack'
 import { WidgetRenderer } from '@ui-schema/ui-schema/WidgetRenderer'
 import { validators } from '@ui-schema/ui-schema/Validators/validators'
 import { CardRenderer, FormGroup, LabelBox } from '@ui-schema/ds-material/Widgets'
-import { WidgetProps, WidgetsBindingFactory, WidgetType, WithScalarValue } from '@ui-schema/ui-schema'
+import { ErrorFallbackProps, WidgetProps, WidgetsBindingFactory, WidgetType, WithScalarValue } from '@ui-schema/ui-schema'
 import { InfoRendererProps } from '@ui-schema/ds-material/Component/InfoRenderer'
+import { List } from 'immutable'
 
-const MyFallbackComponent: React.ComponentType<{
-    error: any | null
-    type?: string
-    widget?: string
-}> = ({type, widget}) => (
+const MyFallbackComponent: React.ComponentType<ErrorFallbackProps> = ({type, widget}) => (
     <div>
         <p><strong>System Error in Widget!</strong></p>
-        <p><strong>Type:</strong> {type}</p>
-        <p><strong>Widget:</strong> {widget}</p>
+        <p><strong>Type:</strong> {List.isList(type) ? type.join(', ') : (type || '-')}</p>
+        <p><strong>Widget:</strong> {widget || '-'}</p>
     </div>
 )
 
diff --git a/packages/ui-schema/src/PluginStack/PluginStackErrorBoundary.tsx b/packages/ui-schema/src/PluginStack/PluginStackErrorBoundary.tsx
index e4b358e5..4562c33a 100644
--- a/packages/ui-schema/src/PluginStack/PluginStackErrorBoundary.tsx
+++ b/packages/ui-schema/src/PluginStack/PluginStackErrorBoundary.tsx
@@ -1,10 +1,11 @@
 import React from 'react'
-import { WidgetsBindingComponents } from '@ui-schema/ui-schema/WidgetsBinding'
+import { ErrorFallbackProps } from '@ui-schema/ui-schema/WidgetsBinding'
 import { StoreKeys } from '@ui-schema/ui-schema/UIStore'
+import { List } from 'immutable'
 
 export class PluginStackErrorBoundary extends React.Component<{
-    FallbackComponent: WidgetsBindingComponents['ErrorFallback']
-    type: string | undefined
+    FallbackComponent: React.ComponentType<ErrorFallbackProps>
+    type: string | List<string> | undefined
     widget: string | undefined
     storeKeys: StoreKeys
 }> {
@@ -23,16 +24,12 @@ export class PluginStackErrorBoundary extends React.Component<{
     render() {
         if (this.state.error) {
             const FallbackComponent = this.props.FallbackComponent
-            if (FallbackComponent) {
-                return <FallbackComponent
-                    error={this.state.error}
-                    type={this.props.type}
-                    widget={this.props.widget}
-                    storeKeys={this.props.storeKeys}
-                />
-            }
-            // todo: multi type support #68
-            return 'error-' + this.props.type + (this.props.widget ? '-' + this.props.widget : '')
+            return <FallbackComponent
+                error={this.state.error}
+                type={this.props.type}
+                widget={this.props.widget}
+                storeKeys={this.props.storeKeys}
+            />
         }
         return this.props.children
     }
diff --git a/packages/ui-schema/src/WidgetRenderer/VirtualWidgetRenderer.js b/packages/ui-schema/src/WidgetRenderer/VirtualWidgetRenderer.js
index 2ec20c17..21beb10d 100644
--- a/packages/ui-schema/src/WidgetRenderer/VirtualWidgetRenderer.js
+++ b/packages/ui-schema/src/WidgetRenderer/VirtualWidgetRenderer.js
@@ -12,8 +12,8 @@ export const VirtualArrayRenderer = (
             key={i}
             schema={
                 List.isList(schema.get('items')) ?
-                    schema.get('items').get(i)
-                    : schema.get('items')
+                    schema.get('items').get(i) :
+                    schema.get('items')
             }
             parentSchema={schema}
             storeKeys={storeKeys.push(i)}
diff --git a/packages/ui-schema/src/WidgetRenderer/WidgetRenderer.js b/packages/ui-schema/src/WidgetRenderer/WidgetRenderer.js
index e5400b13..0cfa84cd 100644
--- a/packages/ui-schema/src/WidgetRenderer/WidgetRenderer.js
+++ b/packages/ui-schema/src/WidgetRenderer/WidgetRenderer.js
@@ -1,6 +1,7 @@
 import React from 'react';
 import {useImmutable} from '@ui-schema/ui-schema/Utils';
 import {widgetMatcher} from '@ui-schema/ui-schema/widgetMatcher';
+import {List} from 'immutable';
 
 export const WidgetRenderer = (
     {
@@ -9,10 +10,6 @@ export const WidgetRenderer = (
         WidgetOverride,
         errors,
         onErrors,
-        // todo: concept in validation
-        // we do not want `parentSchema` to be passed to the final widget for performance reasons
-        // eslint-disable-next-line no-unused-vars
-        //parentSchema,
         // we do not want `requiredList` to be passed to the final widget for performance reasons
         // eslint-disable-next-line no-unused-vars
         requiredList,
@@ -23,26 +20,34 @@ export const WidgetRenderer = (
     },
 ) => {
     const {schema, widgets, isVirtual} = props;
-    const type = schema.get('type');
-    const widgetName = schema.get('widget');
     const currentErrors = useImmutable(errors)
 
     React.useEffect(() => onErrors && onErrors(currentErrors), [onErrors, currentErrors])
 
-    let Widget = widgetMatcher({
-        isVirtual,
-        WidgetOverride,
+    const schemaType = schema.get('type');
+    const widgetName = schema.get('widget');
+    const Widget = widgetMatcher({
+        isVirtual: isVirtual,
+        WidgetOverride: WidgetOverride,
         widgetName: widgetName,
-        schemaType: type,
-        widgets,
+        schemaType: schemaType,
+        widgets: widgets,
     });
 
-    const extractValue = !isVirtual && (type === 'array' || type === 'object')
+    const noExtractValue = !isVirtual && (
+        schemaType === 'array' || schemaType === 'object' ||
+        (
+            List.isList(schemaType) && (
+                schemaType.indexOf('array') !== -1 ||
+                schemaType.indexOf('object') !== -1
+            )
+        )
+    )
     return Widget ?
         <Widget
             {...props}
-            value={extractValue ? undefined : value}
-            internalValue={extractValue ? undefined : internalValue}
+            value={noExtractValue ? undefined : value}
+            internalValue={noExtractValue ? undefined : internalValue}
             errors={currentErrors}
         /> : null;
 };
diff --git a/packages/ui-schema/src/WidgetsBinding.ts b/packages/ui-schema/src/WidgetsBinding.ts
index 2d339473..6253866f 100644
--- a/packages/ui-schema/src/WidgetsBinding.ts
+++ b/packages/ui-schema/src/WidgetsBinding.ts
@@ -5,6 +5,7 @@ import { WidgetType } from '@ui-schema/ui-schema/Widget'
 import { WidgetRendererProps } from '@ui-schema/ui-schema/WidgetRenderer'
 import { PluginSimple } from '@ui-schema/ui-schema/PluginSimpleStack/PluginSimple'
 import { StoreKeys } from '@ui-schema/ui-schema/UIStore'
+import { List } from 'immutable'
 
 export interface GroupRendererProps {
     storeKeys: StoreKeys
@@ -17,13 +18,15 @@ export interface GroupRendererProps {
     spacing?: number
 }
 
+export interface ErrorFallbackProps {
+    error: any | null
+    storeKeys: StoreKeys
+    type?: string | List<string>
+    widget?: string
+}
+
 export interface WidgetsBindingComponents {
-    ErrorFallback?: React.ComponentType<{
-        error: any | null
-        storeKeys: StoreKeys
-        type?: string
-        widget?: string
-    }>
+    ErrorFallback?: React.ComponentType<ErrorFallbackProps>
     // wraps the whole generator
     RootRenderer: React.ComponentType<any>
     // wraps any `object` that has no custom widget
diff --git a/packages/ui-schema/src/widgetMatcher/widgetMatcher.tsx b/packages/ui-schema/src/widgetMatcher/widgetMatcher.tsx
index 90d63d84..43b48c54 100644
--- a/packages/ui-schema/src/widgetMatcher/widgetMatcher.tsx
+++ b/packages/ui-schema/src/widgetMatcher/widgetMatcher.tsx
@@ -21,16 +21,14 @@ export function widgetMatcher<W extends WidgetsBindingFactory<{}, WidgetsBinding
         schemaType,
         widgets,
         NoWidget: NoWidgetCustom,
-    }:
-        {
-            isVirtual: boolean
-            //WidgetOverride?: PluginStackProps['WidgetOverride']
-            WidgetOverride?: WidgetOverrideType<{}, {}, W>
-            widgetName: string | undefined
-            schemaType: SchemaTypesType
-            widgets: W
-            NoWidget?: React.ComponentType<NoWidgetProps>
-        }
+    }: {
+        isVirtual: boolean
+        WidgetOverride?: WidgetOverrideType<{}, {}, W>
+        widgetName: string | undefined
+        schemaType: SchemaTypesType
+        widgets: W
+        NoWidget?: React.ComponentType<NoWidgetProps>
+    }
 ): WidgetType<{}, W> | null {
     const NoW = NoWidgetCustom || NoWidget
     let Widget: WidgetType<{}, W> | null = null